aboutsummaryrefslogtreecommitdiff
path: root/gnu/packages/music.scm
blob: f81a79d507f14ca9b20f8e0eea16c19f7415167d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2015, 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2015 Paul van der Walt <paul@denknerd.org>
;;; Copyright © 2016 Al McElrath <hello@yrns.org>
;;; Copyright © 2016, 2017 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016 Leo Famulari <leo@famulari.name>
;;; Copyright © 2016, 2017 Kei Kebreau <kkebreau@posteo.net>
;;; Copyright © 2016 John J. Foerch <jjfoerch@earthlink.net>
;;; Copyright © 2016 Alex Griffin <a@ajgrf.com>
;;; Copyright © 2017 ng0 <contact.ng0@cryptolab.net>
;;; Copyright © 2017 Rodger Fox <thylakoid@openmailbox.org>
;;; Copyright © 2017 Nicolas Goaziou <mail@nicolasgoaziou.fr>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages music)
  #:use-module (guix utils)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system ant)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system python)
  #:use-module (guix build-system waf)
  #:use-module (gnu packages)
  #:use-module (gnu packages algebra)
  #:use-module (gnu packages apr)
  #:use-module (gnu packages audio)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages backup)
  #:use-module (gnu packages base) ;libbdf
  #:use-module (gnu packages bison)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages cdrom)
  #:use-module (gnu packages code)
  #:use-module (gnu packages check)
  #:use-module (gnu packages cmake)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages curl)
  #:use-module (gnu packages cyrus-sasl)
  #:use-module (gnu packages docbook)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages emacs)
  #:use-module (gnu packages file)
  #:use-module (gnu packages flex)
  #:use-module (gnu packages fltk)
  #:use-module (gnu packages fonts)
  #:use-module (gnu packages fontutils)
  #:use-module (gnu packages freedesktop)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages gnupg)
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages ghostscript)
  #:use-module (gnu packages gl)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gnome)
  #:use-module (gnu packages graphics)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages guile)
  #:use-module (gnu packages image)
  #:use-module (gnu packages imagemagick)
  #:use-module (gnu packages java)
  #:use-module (gnu packages linux) ; for alsa-utils
  #:use-module (gnu packages libffi)
  #:use-module (gnu packages llvm)
  #:use-module (gnu packages man)
  #:use-module (gnu packages mp3)
  #:use-module (gnu packages mpd)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages netpbm)
  #:use-module (gnu packages pcre)
  #:use-module (gnu packages pdf)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages pulseaudio) ;libsndfile
  #:use-module (gnu packages python)
  #:use-module (gnu packages qt)
  #:use-module (gnu packages rdf)
  #:use-module (gnu packages readline)
  #:use-module (gnu packages rsync)
  #:use-module (gnu packages sdl)
  #:use-module (gnu packages tcl)
  #:use-module (gnu packages texinfo)
  #:use-module (gnu packages tex)
  #:use-module (gnu packages tls)
  #:use-module (gnu packages video)
  #:use-module (gnu packages web)
  #:use-module (gnu packages wxwidgets)
  #:use-module (gnu packages xml)
  #:use-module (gnu packages xorg)
  #:use-module (gnu packages xiph)
  #:use-module ((srfi srfi-1) #:select (last)))

(define-public aria-maestosa
  (package
    (name "aria-maestosa")
    (version "1.4.13")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/ariamaestosa/ariamaestosa/"
                                  version "/AriaSrc-" version ".tar.bz2"))
              (sha256
               (base32
                "1cs3z6frx2ch7rm5ammx9p0rxcjrbj1vq14hvcbimpaw39rdsn3d"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f  ;no tests
       #:phases
       ;; TODO: Add scons-build-system and use it here.
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'scons-propagate-environment
           (lambda _
             ;; By design, SCons does not, by default, propagate
             ;; environment variables to subprocesses.  See:
             ;; <http://comments.gmane.org/gmane.linux.distributions.nixos/4969>
             ;; Here, we modify the SConstruct file to arrange for
             ;; environment variables to be propagated.
             (substitute* "SConstruct"
               (("env = Environment\\(\\)")
                "env = Environment(ENV=os.environ)")
               ;; Scons errors out when copying subdirectories from Resources,
               ;; so we move them instead.
               (("Copy") "Move")
               ;; We move the "score" and "Documentation" directories at once,
               ;; so we have to ignore files contained therein.
               (("if \".svn\" in file" line)
                (string-append line
                               " or \"score/\" in file"
                               " or \"Documentation/\" in file")))
             #t))
         (replace 'build (lambda _ (zero? (system* "scons"))))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((out (assoc-ref outputs "out")))
               (and
                (zero? (system* "scons"
                                (string-append "prefix=" out)
                                "install"))
                ;; Fix directory permissions
                (begin
                  (chmod (string-append out "/share/Aria/Documentation") #o555)
                  (chmod (string-append out "/share/Aria/score") #o555)
                  #t))))))))
    (inputs
     `(("wxwidgets" ,wxwidgets)
       ("glib" ,glib)
       ("alsa-lib" ,alsa-lib)))
    (native-inputs
     `(("scons" ,scons)
       ("pkg-config" ,pkg-config)))
    (home-page "http://ariamaestosa.sourceforge.net/")
    (synopsis "MIDI sequencer and editor")
    (description
     "Aria Maestosa is a MIDI sequencer and editor.  It lets you compose, edit
and play MIDI files with a few clicks in a user-friendly interface offering
score, keyboard, guitar, drum and controller views.")
    (license license:gpl3+)))

(define-public cmus
  (package
    (name "cmus")
    (version "2.7.1")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/" name "/" name "/archive/v"
                    version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "0raixgjavkm7hxppzsc5zqbfbh2bhjcmbiplhnsxsmyj8flafyc1"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; cmus does not include tests
       #:phases
       (modify-phases %standard-phases
         (replace
          'configure
          (lambda* (#:key outputs #:allow-other-keys)
            (let ((out (assoc-ref outputs "out")))

              ;; It's an idiosyncratic configure script that doesn't
              ;; understand --prefix=..; it wants prefix=.. instead.
              (zero?
               (system* "./configure"
                        (string-append "prefix=" out)))))))))
    ;; TODO: cmus optionally supports the following formats, which haven't yet
    ;; been added to Guix:
    ;;
    ;; - Roar, libroar
    ;;
    ;; - DISCID_LIBS, apparently different from cd-discid which is included in
    ;;   Guix.  See <http://sourceforge.net/projects/discid/>
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("ao" ,ao)
       ("ffmpeg" ,ffmpeg)
       ("flac" ,flac)
       ("jack" ,jack-1)
       ("libcddb" ,libcddb)
       ("libcdio-paranoia" ,libcdio-paranoia)
       ("libcue" ,libcue)
       ("libmad" ,libmad)
       ("libmodplug" ,libmodplug)
       ("libmpcdec" ,libmpcdec)
       ("libsamplerate" ,libsamplerate)
       ("libvorbis" ,libvorbis)
       ("ncurses" ,ncurses)
       ("opusfile" ,opusfile)
       ("pulseaudio" ,pulseaudio)
       ("wavpack" ,wavpack)))
     (home-page "https://cmus.github.io/")
     (synopsis "Small console music player")
     (description "Cmus is a small and fast console music player.  It supports
many input formats and provides a customisable Vi-style user interface.")
     (license license:gpl2+)))

(define-public denemo
  (package
    (name "denemo")
    (version "2.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://gnu/denemo/denemo-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0hggf8c4xcrjcxd5m00r788r7jg7g8ff54w2idfaqpj5j2ix3299"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (replace 'check
           ;; Denemo's documentation says to use this command to run its
           ;; testsuite.
           (lambda _
             (zero? (system* "make" "-C" "tests" "check"))))
         (add-before 'build 'set-lilypond
           ;; This phase sets the default path for lilypond to its current
           ;; location in the store.
           (lambda* (#:key inputs #:allow-other-keys)
             (let* ((lilypond (string-append (assoc-ref inputs "lilypond")
                                             "/bin/lilypond")))
               (substitute* "src/core/prefops.c"
                 (("g_string_new \\(\"lilypond\"\\);")
                  (string-append "g_string_new (\""
                                 lilypond
                                 "\");"))))
             #t))
         (add-after 'install 'correct-filename
           ;; "graft-derivation/shallow" from the (guix grafts) module runs in
           ;; the C locale, expecting file names to be ASCII encoded. This
           ;; phase renames a filename with a Unicode character in it to meet
           ;; the aforementioned condition.
           (lambda* (#:key outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out")))
               (chdir (string-append
                       out
                       "/share/denemo/templates/instruments/woodwind"))
               (rename-file "Clarinet in B♭.denemo"
                            "Clarinet in Bb.denemo"))
             #t)))))
    (native-inputs
     `(("glib:bin", glib "bin")   ; for gtester
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("aubio" ,aubio)
       ("evince" ,evince)
       ("fftw" ,fftw)
       ("fluidsynth" ,fluidsynth)
       ("glib" ,glib)
       ("gtk+" ,gtk+)
       ("gtk-doc" ,gtk-doc)
       ("gtksourceview" ,gtksourceview)
       ("guile" ,guile-2.0)
       ("intltool" ,intltool)
       ("librsvg" ,librsvg)
       ("libsndfile" ,libsndfile)
       ("libtool" ,libtool)
       ("libxml2" ,libxml2)
       ("lilypond", lilypond)
       ("portaudio" ,portaudio)
       ("portmidi" ,portmidi)
       ("rubberband" ,rubberband)))
    (synopsis "Graphical music notation, front-end to GNU Lilypond")
    (description
     "GNU Denemo is a music notation editor that provides a convenient
interface to the powerful music engraving program Lilypond.  Music can be
typed in using the computer keyboard, played in using a MIDI keyboard, or
even input via a microphone connected to the sound card.  The final product
is publication-quality music notation that is continuously generated in the
background while you work.")
    (home-page "http://www.denemo.org")
    (license license:gpl3+)))

(define-public hydrogen
  (package
    (name "hydrogen")
    (version "0.9.7")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/hydrogen-music/hydrogen/archive/"
                    version ".tar.gz"))
              (sha256
               (base32
                "1dy2jfkdw0nchars4xi4isrz66fqn53a9qk13bqza7lhmsg3s3qy"))))
    (build-system cmake-build-system)
    (arguments
    `(#:test-target "tests"))
    (native-inputs
     `(("cppunit" ,cppunit)
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ;; ("ladspa" ,ladspa) ; cannot find during configure
       ("lash" ,lash)
       ("libarchive" ,libarchive)
       ("libsndfile" ,libsndfile)
       ("libtar" ,libtar)
       ("lrdf" ,lrdf)
       ("qt" ,qt-4)
       ("zlib" ,zlib)))
    (home-page "http://www.hydrogen-music.org")
    (synopsis "Drum machine")
    (description
     "Hydrogen is an advanced drum machine for GNU/Linux.  Its main goal is to
enable professional yet simple and intuitive pattern-based drum programming.")
    (license license:gpl2+)))

(define-public extempore
  (package
    (name "extempore")
    (version "0.7.0")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/digego/extempore/archive/"
                    version ".tar.gz"))
              (sha256
               (base32
                "1wap1mvsicrhlazikf7l8zxg37fir8bmnh9rin28m1rix730vcch"))
              (file-name (string-append name "-" version ".tar.gz"))))
    (build-system cmake-build-system)
    (arguments
     `(;; The default target also includes ahead-of-time compilation of the
       ;; standard libraries.  However, during the "install" phase this would
       ;; happen *again* for unknown reasons.  Hence we only build the
       ;; extempore executable during the build phase.
       #:make-flags '("extempore")
       #:configure-flags '("-DJACK=ON"
                           ;; We want to distribute.
                           "-DIN_TREE=OFF"
                           ;; Don't download any dependencies.
                           "-DBUILD_DEPS=OFF")
       #:modules ((ice-9 match)
                  (guix build cmake-build-system)
                  (guix build utils))
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'patch-directories
           (lambda* (#:key outputs #:allow-other-keys)
             ;; Rewrite default path to runtime directory
             (substitute* "src/Extempore.cpp"
               (("runtimedir \\+= \"runtime\"")
                (string-append "runtimedir = \""
                               (assoc-ref outputs "out")
                               "/lib/extempore/runtime\"")))
             (substitute* "extras/extempore.el"
               (("\\(runtime-directory \\(concat default-directory \"runtime\"\\)\\)")
                (string-append "(runtime-directory \""
                               (assoc-ref outputs "out")
                               "/lib/extempore/runtime"
                               "\")")))
             #t))
         (add-after 'unpack 'link-with-additional-libs
           (lambda _
             ;; The executable must be linked with libffi and zlib.
             (substitute* "CMakeLists.txt"
               (("add_dependencies\\(aot_extended extended_deps\\)") "")
               (("target_link_libraries\\(extempore PRIVATE dl" line)
                (string-append line " ffi z")))
             #t))
         ;; FIXME: AOT compilation of the nanovg bindings fail with the error:
         ;; "Compiler Error  could not bind _nvgLinearGradient"
         (add-after 'unpack 'disable-nanovg
           (lambda _
             (substitute* "CMakeLists.txt"
               (("aotcompile_lib\\(libs/external/nanovg.xtm.*") ""))
             #t))
         ;; FIXME: All examples that are used as tests segfault for some
         ;; unknown reason.
         (add-after 'unpack 'disable-broken-tests
           (lambda _
             (substitute* "CMakeLists.txt"
               (("extempore_add_example_as_test\\(.*") ""))
             #t))
         (add-after 'unpack 'hardcode-external-lib-paths
           (lambda* (#:key inputs #:allow-other-keys)
             (use-modules (ice-9 match))
             (for-each
              (match-lambda
                ((file-name lib pkg-name)
                 (substitute* (string-append "libs/external/" file-name ".xtm")
                   ((lib) (string-append (assoc-ref inputs pkg-name)
                                         "/lib/" lib)))))
              '(("assimp"    "libassimp.so"    "assimp")
                ("portmidi"  "libportmidi.so"  "portmidi")
                ("sndfile"   "libsndfile.so"   "libsndfile")
                ("fft"       "libkiss_fft.so"  "kiss-fft")
                ("stb_image" "libstb_image.so" "stb-image")
                ("nanovg"    "libnanovg.so"    "nanovg")
                ("glext"     "libGL.so"        "mesa")
                ("glfw3"     "libglfw.so"      "glfw")
                ("gl/glcore-directbind"   "libGL.so" "mesa")
                ("gl/glcompat-directbind" "libGL.so" "mesa")))
             #t))
         (add-after 'unpack 'use-own-llvm
          (lambda* (#:key inputs #:allow-other-keys)
            (setenv "EXT_LLVM_DIR" (assoc-ref inputs "llvm"))
            ;; Our LLVM builds shared libraries, so Extempore should use
            ;; those.
            (substitute* "CMakeLists.txt"
              (("CMAKE_STATIC_LIBRARY") "CMAKE_SHARED_LIBRARY"))
            #t))
         (add-after 'unpack 'fix-aot-compilation
           (lambda* (#:key outputs #:allow-other-keys)
             (substitute* "CMakeLists.txt"
               ;; EXT_SHARE_DIR does not exist before installation, so the
               ;; working directory should be the source directory instead.
               (("WORKING_DIRECTORY \\$\\{EXT_SHARE_DIR\\}")
                "WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}")
               ;; Extempore needs to be told where the runtime is to be found.
               ;; While we're at it we disable automatic tuning for a specific
               ;; CPU to make binary substitution possible.
               (("COMMAND extempore" prefix)
                (string-append prefix " --sharedir " (getcwd)
                               " --mcpu=generic --attr=none")))
             #t)))))
    (inputs
     `(("llvm" ,llvm-for-extempore)
       ("libffi" ,libffi)
       ("jack" ,jack-1)
       ("libsndfile" ,libsndfile)
       ("glfw" ,glfw)
       ("apr" ,apr)
       ("stb-image" ,stb-image-for-extempore)
       ("kiss-fft" ,kiss-fft-for-extempore)
       ("nanovg" ,nanovg-for-extempore)
       ("portmidi" ,portmidi-for-extempore)
       ("assimp" ,assimp)
       ("alsa-lib" ,alsa-lib)
       ("portaudio" ,portaudio)
       ("mesa" ,mesa)
       ("pcre" ,pcre)
       ("zlib" ,zlib)))
    (native-inputs
     `(("perl" ,perl)
       ("emacs" ,emacs-no-x)))
    ;; Extempore refuses to build on architectures other than x86_64
    (supported-systems '("x86_64-linux"))
    (home-page "http://digego.github.io/extempore/")
    (synopsis "Programming environment for live coding of multimedia")
    (description
     "Extempore is a programming language and runtime environment designed
with live programming in mind.  It supports interactive programming in a REPL
style, compiling and binding code just-in-time.  Although Extempore has its
roots in 'live coding' of audiovisual media art, it is suitable for any task
domain where dynamic run-time modifiability and good numerical performance are
required.  Extempore also has strong timing and concurrency semantics, which
are helpful when working in problem spaces where timing is important (such as
audio and video).")
    (license license:bsd-2)))

(define-public klick
  (package
    (name "klick")
    (version "0.12.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://das.nasophon.de/download/klick-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0hmcaywnwzjci3pp4xpvbijnnwvibz7gf9xzcdjbdca910y5728j"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ;no "check" target
       #:phases
       ;; TODO: Add scons-build-system and use it here.
       (modify-phases %standard-phases
         (delete 'configure)
         (replace 'build
                  (lambda* (#:key inputs outputs #:allow-other-keys)
                    (let ((out (assoc-ref outputs "out")))
                      (mkdir-p out)
                      (zero? (system* "scons" (string-append "PREFIX=" out))))))
         (replace 'install (lambda _ (zero? (system* "scons" "install")))))))
    (inputs
     `(("boost" ,boost)
       ("jack" ,jack-1)
       ("libsndfile" ,libsndfile)
       ("libsamplerate" ,libsamplerate)
       ("liblo" ,liblo)
       ("rubberband" ,rubberband)))
    (native-inputs
     `(("scons" ,scons)
       ("python" ,python-2)
       ("pkg-config" ,pkg-config)))
    (home-page "http://das.nasophon.de/klick/")
    (synopsis "Metronome for JACK")
    (description
     "klick is an advanced command-line based metronome for JACK.  It allows
you to define complex tempo maps for entire songs or performances.")
    (license license:gpl2+)))

(define-public gtklick
  (package
    (name "gtklick")
    (version "0.6.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://das.nasophon.de/download/gtklick-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0dq1km6njnzsqdqyf6wzir9g733z0mc9vmxfg2383k3c2a2di6bp"))))
    (build-system python-build-system)
    (arguments
     `(#:tests? #f ; no tests
       #:python ,python-2
       #:phases
       (modify-phases %standard-phases
         (add-before 'build 'add-sitedirs
           ;; .pth files are not automatically interpreted unless the
           ;; directories containing them are added as "sites".  The directories
           ;; are then added to those in the PYTHONPATH.  This is required for
           ;; the operation of pygtk.
           (lambda _
             (substitute* "gtklick/gtklick.py"
               (("import pygtk")
                "import pygtk, site, sys
for path in [path for path in sys.path if 'site-packages' in path]: site.addsitedir(path)"))))
         (add-after 'unpack 'inject-store-path-to-klick
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "gtklick/klick_backend.py"
               (("KLICK_PATH = 'klick'")
                (string-append "KLICK_PATH = '"
                               (assoc-ref inputs "klick")
                               "/bin/klick'")))
             #t)))))
    (inputs
     `(("klick" ,klick)
       ("python2-pyliblo" ,python2-pyliblo)
       ("python2-pygtk" ,python2-pygtk)))
    (native-inputs
     `(("gettext" ,gettext-minimal)))
    (home-page "http://das.nasophon.de/gtklick/")
    (synopsis "Simple metronome with an easy-to-use graphical interface")
    (description
     "Gtklick is a simple metronome with an easy-to-use graphical user
interface.  It is implemented as a frontend to @code{klick}.")
    (license license:gpl2+)))

(define-public libgme
  (package
    (name "libgme")
    (version "0.6.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://bitbucket.org/mpyne/game-music-emu/"
                                  "downloads/game-music-emu-" version
                                  ".tar.bz2"))
              (sha256
               (base32
                "08fk7zddpn7v93d0fa7fcypx7hvgwx9b5psj9l6m8b87k2hbw4fw"))))
    (build-system cmake-build-system)
    (arguments
     '(#:tests? #f)) ; no check target
    (home-page "https://bitbucket.org/mpyne/game-music-emu")
    (synopsis "Video game music file playback library")
    (description
     "Game-music-emu is a collection of video game music file emulators that
support the following formats and systems:
@table @code
@item AY
ZX Spectrum/Asmtrad CPC
@item GBS
Nintendo Game Boy
@item GYM
Sega Genesis/Mega Drive
@item HES
NEC TurboGrafx-16/PC Engine
@item KSS
MSX Home Computer/other Z80 systems (doesn't support FM sound)
@item NSF/NSFE
Nintendo NES/Famicom (with VRC 6, Namco 106, and FME-7 sound)
@item SAP
Atari systems using POKEY sound chip
@item SPC
Super Nintendo/Super Famicom
@item VGM/VGZ
Sega Master System/Mark III, Sega Genesis/Mega Drive, BBC Micro
@end table")
    (license (list license:lgpl2.1+
                   ;; demo and player directories are under the Expat license
                   license:expat))))

(define-public lilypond
  (package
    (name "lilypond")
    (version "2.19.63")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://download.linuxaudio.org/lilypond/sources/v"
                    (version-major+minor version) "/"
                    name "-" version ".tar.gz"))
              (sha256
               (base32
                "0hwv7m1lzyhjiyxqhqfdrrrpx475jhiwckrnxbjbv3ynhyzkngw0"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; out-test/collated-files.html fails
       #:out-of-source? #t
       #:make-flags '("conf=www") ;to generate images for info manuals
       #:configure-flags
       (list "CONFIGURATION=www"
             (string-append "--with-texgyre-dir="
                            (assoc-ref %build-inputs "font-tex-gyre")
                            "/share/fonts/opentype/"))
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'use-texlive-union
           (lambda _
             ;; FIXME: fonts are not found and have to be generated in HOME.
             (setenv "HOME" "/tmp")
             ;; The test for the "lh" package fails, even though it is among
             ;; the inputs.
             (substitute* "configure"
               (("TEX_FIKPARM=.*") "TEX_FIKPARM=found\n"))
             #t))
         (add-after 'unpack 'fix-path-references
          (lambda _
            (substitute* "scm/backend-library.scm"
              (("\\(search-executable '\\(\"gs\"\\)\\)")
               (string-append "\"" (which "gs") "\""))
              (("\"/bin/sh\"")
               (string-append "\"" (which "sh") "\"")))
            #t))
         (add-before 'configure 'prepare-configuration
          (lambda _
            (substitute* "configure"
              (("SHELL=/bin/sh") "SHELL=sh")
              ;; When checking the fontforge version do not consider the
              ;; version string that's part of the directory.
              (("head -n") "tail -n"))
            (setenv "out" "www")
            (setenv "conf" "www")
            #t))
         (add-after 'install 'install-info
           (lambda _
             (zero? (system* "make"
                             "-j" (number->string (parallel-job-count))
                             "conf=www" "install-info")))))))
    (inputs
     `(("guile" ,guile-1.8)
       ("font-dejavu" ,font-dejavu)
       ("font-tex-gyre" ,font-tex-gyre)
       ("fontconfig" ,fontconfig)
       ("freetype" ,freetype)
       ("ghostscript" ,ghostscript)
       ("pango" ,pango)
       ("python" ,python-2)))
    (native-inputs
     `(("bison" ,bison)
       ("perl" ,perl)
       ("flex" ,flex)
       ("fontforge" ,fontforge)
       ("dblatex" ,dblatex)
       ("gettext" ,gettext-minimal)
       ("imagemagick" ,imagemagick)
       ("netpbm" ,netpbm) ;for pngtopnm
       ("texlive" ,(texlive-union (list texlive-metapost
                                        texlive-generic-epsf
                                        texlive-latex-lh
                                        texlive-latex-cyrillic)))
       ("texinfo" ,texinfo)
       ("texi2html" ,texi2html)
       ("rsync" ,rsync)
       ("pkg-config" ,pkg-config)
       ("zip" ,zip)))
    (home-page "http://www.lilypond.org/")
    (synopsis "Music typesetting")
    (description
     "GNU LilyPond is a music typesetter, which produces high-quality sheet
music.  Music is input in a text file containing control sequences which are
interpreted by LilyPond to produce the final document.  It is extendable with
Guile.")
    (license license:gpl3+)

    ;; On armhf and mips64el, building the documentation sometimes leads to
    ;; more than an hour of silence, so double the max silent time.
    (properties `((max-silent-time . 7200)))))

(define-public non-sequencer
  ;; The latest tagged release is three years old and uses a custom build
  ;; system, so we take the last commit.
  (let ((commit "10c31e57291b6e42be53371567a722b62b32d220")
        (revision "3"))
    (package
      (name "non-sequencer")
      (version (string-append "1.9.5-" revision "." (string-take commit 7)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "git://git.tuxfamily.org/gitroot/non/non.git")
                      (commit commit)))
                (sha256
                 (base32
                  "080rha4ffp7qycyg1mqcf4vj0s7z8qfvz6bxm0w29xgg2kkmb3fx"))
                (file-name (string-append name "-" version "-checkout"))))
      (build-system waf-build-system)
      (arguments
       `(#:tests? #f ;no "check" target
         #:configure-flags
         (list "--project=sequencer"
               ;; Disable the use of SSE unless on x86_64.
               ,@(if (not (string-prefix? "x86_64" (or (%current-target-system)
                                                       (%current-system))))
                     '("--disable-sse")
                     '()))
         #:phases
         (modify-phases %standard-phases
           (add-before
            'configure 'set-flags
            (lambda _
              ;; Compile with C++11, required by libsigc++.
              (setenv "CXXFLAGS" "-std=c++11")
              #t)))
         #:python ,python-2))
      (inputs
       `(("jack" ,jack-1)
         ("libsigc++" ,libsigc++)
         ("liblo" ,liblo)
         ("ntk" ,ntk)))
      (native-inputs
       `(("pkg-config" ,pkg-config)))
      (home-page "http://non.tuxfamily.org/wiki/Non%20Sequencer")
      (synopsis "Pattern-based MIDI sequencer")
      (description
       "The Non Sequencer is a powerful, lightweight, real-time,
pattern-based MIDI sequencer.  It utilizes the JACK Audio Connection Kit for
MIDI I/O and the NTK GUI toolkit for its user interface.  Everything in Non
Sequencer happens on-line, in real-time.  Music can be composed live, while the
transport is rolling.")
      (license license:gpl2+))))

(define-public non-session-manager
  (package (inherit non-sequencer)
    (name "non-session-manager")
    (arguments
     (substitute-keyword-arguments (package-arguments non-sequencer)
       ((#:configure-flags flags)
        `(cons "--project=session-manager"
               (delete "--project=sequencer" ,flags)))))
    (inputs
     `(("jack" ,jack-1)
       ("liblo" ,liblo)
       ("ntk" ,ntk)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://non.tuxfamily.org/nsm/")
    (synopsis "Audio session management")
    (description
     "The Non Session Manager is an API and an implementation for audio
session management.  NSM clients use a well-specified OSC protocol to
communicate with the session management daemon.")
    (license license:gpl2+)))

(define-public non-mixer
  (package (inherit non-sequencer)
    (name "non-mixer")
    (arguments
     (substitute-keyword-arguments (package-arguments non-sequencer)
       ((#:configure-flags flags)
        `(cons "--project=mixer"
               (delete "--project=sequencer" ,flags)))))
    (inputs
     `(("jack" ,jack-1)
       ("liblo" ,liblo)
       ("ladspa" ,ladspa)
       ("lrdf" ,lrdf)
       ("ntk" ,ntk)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://non.tuxfamily.org/wiki/Non%20Mixer")
    (synopsis "Modular digital audio mixer")
    (description
     "The Non Mixer is a powerful, reliable and fast modular digital audio
mixer.  It utilizes JACK for inter-application audio I/O and the NTK GUI
toolkit for a fast and lightweight user interface.  Non Mixer can be used
alone or in concert with Non Timeline and Non Sequencer to form a complete
studio.")
    (license license:gpl2+)))

(define-public non-timeline
  (package (inherit non-sequencer)
    (name "non-timeline")
    (arguments
     (substitute-keyword-arguments (package-arguments non-sequencer)
       ((#:configure-flags flags)
        `(cons "--project=timeline"
               (delete "--project=sequencer" ,flags)))))
    (inputs
     `(("jack" ,jack-1)
       ("liblo" ,liblo)
       ("libsndfile" ,libsndfile)
       ("ntk" ,ntk)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://non.tuxfamily.org/wiki/Non%20Timeline")
    (synopsis "Modular digital audio timeline arranger")
    (description
     "The Non Timeline is a powerful, reliable and fast modular digital audio
timeline arranger.  It utilizes JACK for inter-application audio I/O and the
NTK GUI toolkit for a fast and lightweight user interface.  Non Timeline can
be used alone or in concert with Non Mixer and Non Sequencer to form a
complete studio.")
    (license license:gpl2+)))

(define-public solfege
  (package
    (name "solfege")
    (version "3.22.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://gnu/solfege/solfege-"
                    version ".tar.xz"))
              (sha256
               (base32
                "1w25rxdbj907nsx285k9nm480pvy12w3yknfh4n1dfv17cwy072i"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; xmllint attempts to download DTD
       #:test-target "test"
       #:phases
       (alist-cons-after
        'unpack 'fix-configuration
        (lambda* (#:key inputs #:allow-other-keys)
          (substitute* "default.config"
            (("csound=csound")
             (string-append "csound="
                            (assoc-ref inputs "csound")
                            "/bin/csound"))
            (("/usr/bin/aplay")
             (string-append (assoc-ref inputs "aplay")
                            "/bin/aplay"))
            (("/usr/bin/timidity")
             (string-append (assoc-ref inputs "timidity")
                            "/bin/timidity"))
            (("/usr/bin/mpg123")
             (string-append (assoc-ref inputs "mpg123")
                            "/bin/mpg123"))
            (("/usr/bin/ogg123")
             (string-append (assoc-ref inputs "ogg123")
                            "/bin/ogg123"))))
        (alist-cons-before
         'build 'patch-python-shebangs
         (lambda _
           ;; Two python scripts begin with a Unicode BOM, so patch-shebang
           ;; has no effect.
           (substitute* '("solfege/parsetree.py"
                          "solfege/presetup.py")
             (("#!/usr/bin/python") (string-append "#!" (which "python")))))
         (alist-cons-before
          'build 'add-sitedirs
          ;; .pth files are not automatically interpreted unless the
          ;; directories containing them are added as "sites".  The directories
          ;; are then added to those in the PYTHONPATH.  This is required for
          ;; the operation of pygtk and pygobject.
          (lambda _
            (substitute* "run-solfege.py"
              (("import os")
               "import os, site
for path in [path for path in sys.path if 'site-packages' in path]: site.addsitedir(path)")))
          (alist-cons-before
           'build 'adjust-config-file-prefix
           (lambda* (#:key outputs #:allow-other-keys)
             (substitute* "run-solfege.py"
               (("prefix = os.path.*$")
                (string-append "prefix = " (assoc-ref outputs "out")))))
           (alist-cons-after
            'install 'wrap-program
            (lambda* (#:key inputs outputs #:allow-other-keys)
              ;; Make sure 'solfege' runs with the correct PYTHONPATH.
              (let* ((out (assoc-ref outputs "out"))
                     (path (getenv "PYTHONPATH")))
                (wrap-program (string-append out "/bin/solfege")
                  `("PYTHONPATH" ":" prefix (,path)))))
            %standard-phases)))))))
    (inputs
     `(("python" ,python-2)
       ("pygtk" ,python2-pygtk)
       ("gettext" ,gettext-minimal)
       ("gtk" ,gtk+)
       ("lilypond" ,lilypond)
       ;; players needed at runtime
       ("aplay" ,alsa-utils)
       ("csound" ,csound) ; optional, needed for some exercises
       ("mpg123" ,mpg123)
       ("ogg123" ,vorbis-tools)
       ("timidity" ,timidity++)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("txt2man" ,txt2man)
       ("libxml2" ,libxml2) ; for tests
       ("ghostscript" ,ghostscript)
       ("texinfo" ,texinfo)))
    (home-page "https://www.gnu.org/software/solfege/")
    (synopsis "Ear training")
    (description
     "GNU Solfege is a program for practicing musical ear-training.  With it,
you can practice your recognition of various musical intervals and chords.  It
features a statistics overview so you can monitor your progress across several
sessions.  Solfege is also designed to be extensible so you can easily write
your own lessons.")
    (license license:gpl3+)))

(define-public powertabeditor
  (package
    (name "powertabeditor")
    (version "2.0.0-alpha10")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/powertab/powertabeditor/archive/"
                    version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "1fr14ql0yhlqvh6y08yaanszm2nvca5i50rqym396kfvga3ky18x"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; Remove bundled sources for external libraries
                  (delete-file-recursively "external")
                  ;; Use only system libraries
                  (substitute* "CMakeLists.txt"
                    (("include\\( PTE_ThirdParty \\)")
                     "\
include(third_party/Qt)
include(third_party/boost)
add_library( Catch INTERFACE IMPORTED )
add_library( rapidjson INTERFACE IMPORTED )"))
                  #t))))
    (build-system cmake-build-system)
    (arguments
     `(#:modules ((guix build cmake-build-system)
                  (guix build utils)
                  (ice-9 match))
       #:configure-flags
       ;; CMake appears to lose the RUNPATH for some reason, so it has to be
       ;; explicitly set with CMAKE_INSTALL_RPATH.
       (list "-DCMAKE_BUILD_WITH_INSTALL_RPATH=TRUE"
             (string-append "-DCMAKE_INSTALL_RPATH="
                            (string-join (map (match-lambda
                                                ((name . directory)
                                                 (string-append directory "/lib")))
                                              %build-inputs) ";"))
             "-DPTE_DATA_DIR=share/powertabeditor")
       #:phases
       (modify-phases %standard-phases
         (replace 'check
           (lambda _
             (zero? (system* "bin/pte_tests"
                             ;; FIXME: these tests fail
                             "exclude:Actions/EditStaff"
                             "exclude:Formats/PowerTabOldImport/MergeMultiBarRests"
                             "exclude:Score/ViewFilter/FilterRule"
                             "exclude:Score/ViewFilter/ViewFilter"
                             "exclude:Formats/PowerTabOldImport/Directions"
                             ))))
         (add-before 'configure 'remove-third-party-libs
           (lambda* (#:key inputs #:allow-other-keys)
             ;; Link with required static libraries, because we're not
             ;; using the bundled version of withershins.
             ;; Also add pthread for fixing a linker error.
             (substitute* "source/build/CMakeLists.txt"
               (("withershins" line)
                (string-append line "\n"
                               (assoc-ref inputs "binutils")
                               "/lib/libbfd.a\n"
                               (assoc-ref inputs "libiberty")
                               "/lib/libiberty.a\n"
                               "dl\n"
                               "pthread\n"
                               "z\n")))
             #t)))))
    (inputs
     `(("boost" ,boost)
       ("alsa-lib" ,alsa-lib)
       ("qtbase" ,qtbase)
       ("withershins" ,withershins)
       ("libiberty" ,libiberty) ;for withershins
       ("binutils" ,binutils) ;for -lbfd and -liberty (for withershins)
       ("timidity" ,timidity++)
       ("pugixml" ,pugixml)
       ("rtmidi" ,rtmidi)
       ("rapidjson" ,rapidjson)
       ("zlib" ,zlib)))
    (native-inputs
     `(("catch" ,catch-framework)
       ("pkg-config" ,pkg-config)))
    (home-page "http://powertabs.net")
    (synopsis "Guitar tablature editor")
    (description
     "Power Tab Editor 2.0 is the successor to the famous original Power Tab
Editor.  It is compatible with Power Tab Editor 1.7 and Guitar Pro.")
    (license license:gpl3+)))

(define-public jalv-select
  (package
    (name "jalv-select")
    (version "0.8")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/jalv_select/"
                                  "archive/V" version ".tar.gz"))
              (sha256
               (base32
                "0zraagwr681b5s3qifxf399c7q93jz23c8sr42gmff9zqnvxc75q"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'ignore-PATH
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "jalv.select.cpp"
               (("echo \\$PATH.*tr ':'.*xargs ls")
                (string-append "ls -1 " (assoc-ref inputs "jalv") "/bin")))
             (substitute* "jalv.select.h"
               (("gtkmm.h") "gtkmm-2.4/gtkmm.h"))
             #t)))))
    (inputs
     `(("lilv" ,lilv)
       ("lv2" ,lv2)
       ("jalv" ,jalv)
       ("gtkmm" ,gtkmm-2)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "https://github.com/brummer10/jalv_select")
    (synopsis "GUI to select LV2 plugins and run them with jalv")
    (description
     "The jalv.select package provides a graphical user interface allowing
users to select LV2 plugins and run them with jalv.")
    (license license:public-domain)))

(define-public synthv1
  (package
    (name "synthv1")
    (version "0.8.3")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/synthv1/synthv1/" version
                              "/synthv1-" version ".tar.gz"))
              (sha256
               (base32
                "1yqh7jx431q01f15b3h4dh038yvmc4jcsr3vn2175kqgwfj9jqcg"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; There are no tests.
       #:configure-flags
       '("CXXFLAGS=-std=gnu++11")))
    (inputs
     `(("jack" ,jack-1)
       ("lv2" ,lv2)
       ("alsa-lib" ,alsa-lib)
       ("non-session-manager" ,non-session-manager)
       ("liblo" ,liblo)
       ("qtbase" ,qtbase)
       ("qttools" ,qttools)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://synthv1.sourceforge.net")
    (synopsis "Polyphonic subtractive synthesizer")
    (description
     "Synthv1 is an old-school subtractive polyphonic synthesizer with four
oscillators and stereo effects.")
    (license license:gpl2+)))

(define-public drumkv1
  (package
    (name "drumkv1")
    (version "0.8.3")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/drumkv1/drumkv1/" version
                              "/drumkv1-" version ".tar.gz"))
              (sha256
               (base32
                "0rvdvc81j4b4n64i7jmk58khry28al8p73g71srdv1kw7j65f2zv"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; There are no tests.
       #:configure-flags
       '("CXXFLAGS=-std=gnu++11")))
    (inputs
     `(("jack" ,jack-1)
       ("lv2" ,lv2)
       ("libsndfile" ,libsndfile)
       ("alsa-lib" ,alsa-lib)
       ("non-session-manager" ,non-session-manager)
       ("liblo" ,liblo)
       ("qtbase" ,qtbase)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("qttools" ,qttools)))
    (home-page "http://drumkv1.sourceforge.net")
    (synopsis "Drum-kit sampler synthesizer with stereo effects")
    (description
     "Drumkv1 is an old-school drum-kit sampler synthesizer with stereo
effects.")
    (license license:gpl2+)))

(define-public samplv1
  (package
    (name "samplv1")
    (version "0.8.3")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "mirror://sourceforge/samplv1/samplv1/" version
                              "/samplv1-" version ".tar.gz"))
              (sha256
               (base32
                "1lbxrn24fg1z659zbaakzq6z8gbax6z16di9v9bhhslk8w2mndik"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; There are no tests.
       #:configure-flags
       '("CXXFLAGS=-std=gnu++11")))
    (inputs
     `(("jack" ,jack-1)
       ("lv2" ,lv2)
       ("libsndfile" ,libsndfile)
       ("alsa-lib" ,alsa-lib)
       ("non-session-manager" ,non-session-manager)
       ("liblo" ,liblo)
       ("qtbase" ,qtbase)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("qttools" ,qttools)))
    (home-page "http://samplv1.sourceforge.net")
    (synopsis "Polyphonic sampler synthesizer with stereo effects")
    (description
     "Samplv1 is an old-school polyphonic sampler synthesizer with stereo
effects.")
    (license license:gpl2+)))

(define-public amsynth
  (package
    (name "amsynth")
    (version "1.7.1")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://github.com/amsynth/amsynth/releases/"
                           "download/release-" version
                           "/amsynth-" version ".tar.bz2"))
       (sha256
        (base32
         "1882pfcmf3rqg3vd4qflzkppcv158d748i603spqjbxqi8z7x7w0"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-before 'configure 'set-flags
           (lambda _
             ;; Compile with C++11, required by gtkmm.
             (setenv "CXXFLAGS" "-std=c++11")
             #t)))))
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("lv2" ,lv2)
       ("lash" ,lash)
       ("libsndfile" ,libsndfile)
       ("gtk+" ,gtk+-2)
       ("gtkmm" ,gtkmm-2)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("intltool" ,intltool)))
    (home-page "http://amsynth.github.io")
    (synopsis "Analog modeling synthesizer")
    (description
     "amsynth is an easy-to-use software synthesizer with a classic
subtractive synthesizer topology.  Its features include: dual
oscillators (sine, saw, square, noise) with hard sync; 12 and 24 dB/oct
resonant filters (low-pass, high-pass, band-pass, notch); mono, poly, legato
keyboard modes; dual ADSR envelope generators for filter and amplitude; LFO
which can modulate the oscillators, filter, and amplitude; distortion and
reverb effects.")
    (license license:gpl2+)))

(define-public setbfree
  (package
    (name "setbfree")
    (version "0.8.4")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "https://github.com/pantherb/setBfree/archive/v"
                              version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "1g4s1920kb2q5gpp82l2vxia29qa8g8zvdjgrca8ypynvxpzn65f"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; no "check" target
       #:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             (string-append "FONTFILE="
                            (assoc-ref %build-inputs "font-bitstream-vera")
                            "/share/fonts/truetype/VeraBd.ttf")
             ;; Disable unsupported optimization flags on non-x86
             ,@(let ((system (or (%current-target-system)
                                 (%current-system))))
                 (if (or (string-prefix? "x86_64" system)
                         (string-prefix? "i686" system))
                     '()
                     '("OPTIMIZATIONS=-ffast-math -fomit-frame-pointer -O3"))))
       #:phases
       (modify-phases %standard-phases
         (add-before 'build 'set-CC-variable
                     (lambda _ (setenv "CC" "gcc") #t))
         (delete 'configure))))
    (inputs
     `(("jack" ,jack-1)
       ("lv2" ,lv2)
       ("zita-convolver" ,zita-convolver)
       ("glu" ,glu)
       ("ftgl" ,ftgl)
       ("font-bitstream-vera" ,font-bitstream-vera)))
    (native-inputs
     `(("help2man" ,help2man)
       ("pkg-config" ,pkg-config)))
    (home-page "http://setbfree.org")
    (synopsis "Tonewheel organ")
    (description
     "setBfree is a MIDI-controlled, software synthesizer designed to imitate
the sound and properties of the electromechanical organs and sound
modification devices that brought world-wide fame to the names and products of
Laurens Hammond and Don Leslie.")
    (license license:gpl2+)))

(define-public beast
  (package
    (name "beast")
    (version "0.10.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://testbit.eu/pub/dists/beast/beast-"
                                  version ".tar.xz"))
              (sha256
               (base32
                "1jzzmfwssklzw8fvvil04n8csc0zm99fnd9p2xa7c0xchg37lvhn"))))
    (build-system gnu-build-system)
    (arguments
     '(#:parallel-build? #f)) ; Race conditions cause build failures
    (inputs
     `(("rapicorn" ,rapicorn)
       ("guile" ,guile-1.8)
       ("python" ,python-2)
       ("libgnomecanvas" ,libgnomecanvas)
       ("libogg" ,libogg)
       ("libmad" ,libmad)
       ("flac" ,flac)
       ("alsa-lib" ,alsa-lib)
       ("libvorbis" ,libvorbis)
       ("gettext" ,gettext-minimal)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("glib:bin" ,glib "bin")
       ("cython" ,python2-cython)
       ("perl" ,perl)
       ("perl-xml-parser" ,perl-xml-parser)))
    (home-page "https://testbit.eu/wiki/Beast_Home")
    (synopsis "Music composition and modular synthesis environment")
    (description
     "Beast is a music composition and modular synthesis application.  It
supports a wide range of standards in the field, such as MIDI, various audio
file formats and LADSPA modules.  It allows for multitrack editing, real-time
synthesis, 32bit audio rendering, precise timing down to sample granularity,
on-demand and partial loading of wave files, on the fly decoding, stereo
mixing, FFT scopes, MIDI automation and full scriptability in Scheme.")
    (license license:gpl3+)))

(define-public bristol
  (package
    (name "bristol")
    (version "0.60.11")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/bristol/bristol/"
                                  (version-major+minor version)
                                  "/bristol-" version ".tar.gz"))
              (sha256
               (base32
                "1fi2m4gmvxdi260821y09lxsimq82yv4k5bbgk3kyc3x1nyhn7vx"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'remove-sse-flags
           (lambda* (#:key system #:allow-other-keys)
             (when (not (or (string-prefix? "x86_64" system)
                            (string-prefix? "i686" system)))
               (substitute* "bristol/Makefile.in"
                 (("-msse -mfpmath=sse") "")))
             #t))
         ;; alsa-lib 1.1.x no longer provides iatomic.h.  That's okay because
         ;; bristol actually doesn't use it.
         (add-after 'unpack 'do-not-use-alsa-iatomic
           (lambda _
             (substitute* "libbristolaudio/audioEngineJack.c"
               (("#include <alsa/iatomic.h>") ""))
             #t))
         ;; We know that Bristol has been linked with JACK and we don't have
         ;; ldd, so we can just skip this check.
         (add-after 'unpack 'do-not-grep-for-jack
           (lambda _
             (substitute* "bin/startBristol.in"
               (("ldd `which bristol` | grep jack") "echo guix"))
             #t)))))
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("liblo" ,liblo)
       ("libx11" ,libx11)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://bristol.sourceforge.net/")
    (synopsis "Synthesizer emulator")
    (description
     "Bristol is an emulation package for a number of different 'classic'
synthesizers including additive and subtractive and a few organs.  The
application consists of the engine, which is called bristol, and its own GUI
library called brighton that represents all the emulations.  There are
currently more than twenty different emulations; each does sound different
although the author maintains that the quality and accuracy of each emulation
is subjective.")
    (license license:gpl3+)))

(define-public tuxguitar
  (package
    (name "tuxguitar")
    (version "1.4")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/tuxguitar/TuxGuitar/TuxGuitar-"
                    version "/tuxguitar-" version "-src.tar.gz"))
              (sha256
               (base32
                "041275vwfr82kass7wiq9g2y82w9qrbzfinzcvfij2f2q45njwmc"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  ;; Delete pre-built classes
                  (delete-file-recursively "TuxGuitar-android-gdrive/bin")
                  (delete-file-recursively "TuxGuitar-android-gdrive-gdaa/bin")
                  #t))))
    (build-system ant-build-system)
    (arguments
     `(#:build-target "build"
       #:tests? #f ; no tests
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'enter-dir
           (lambda _ (chdir "TuxGuitar-lib") #t))
         (add-after 'build 'build-libraries
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((initial-classpath (getenv "CLASSPATH"))
                    (build-dir (lambda (dir)
                                 (chdir "..")
                                 (setenv "CLASSPATH"
                                         (string-join (cons initial-classpath
                                                            (find-files (getcwd) "\\.jar$"))
                                                      ":"))
                                 (chdir dir)
                                 (if (file-exists? "build.xml")
                                     ((assoc-ref %standard-phases 'build)
                                      #:build-target "build")
                                     (begin
                                       ;; Generate default build.xml
                                       ((@@ (guix build ant-build-system) default-build.xml)
                                        (string-append (string-downcase dir) ".jar")
                                        (string-append (assoc-ref outputs "out")
                                                       "/share/java"))
                                       ((assoc-ref %standard-phases 'build)))))))
               (map build-dir '("TuxGuitar-editor-utils"
                                "TuxGuitar-ui-toolkit"
                                "TuxGuitar-ui-toolkit-swt"
                                "TuxGuitar-awt-graphics")))))
         (add-after 'build-libraries 'build-application
           (lambda _
             (chdir "../TuxGuitar")
             ((assoc-ref %standard-phases 'build)
              #:build-target "build")))
         (replace 'install
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((out   (assoc-ref outputs "out"))
                    (bin   (string-append out "/bin"))
                    (share (string-append out "/share"))
                    (lib   (string-append share "/java"))
                    (swt   (assoc-ref inputs "java-swt")))
               (mkdir-p bin)
               ;; install all jars
               (for-each (lambda (file)
                           (install-file file lib))
                         (find-files ".." "\\.jar$"))

               ;; install all resources
               (copy-recursively "share" share)

               ;; create wrapper
               (call-with-output-file (string-append bin "/tuxguitar")
                 (lambda (port)
                   (let ((classpath (string-join (append (find-files lib "\\.jar$")
                                                         (find-files swt "\\.jar$"))
                                                 ":")))
                     (format
                      port
                      (string-append "#!/bin/sh\n"
                                     (which "java")
                                     " -cp " classpath
                                     " -Dtuxguitar.home.path=" out
                                     " -Dtuxguitar.share.path=" out "/share"
                                     " -Dswt.library.path=" swt "/lib"
                                     " org.herac.tuxguitar.app.TGMainSingleton"
                                     " \"$1\" \"$2\"")))))
               (chmod (string-append bin "/tuxguitar") #o555)
               #t))))))
    (inputs
     `(("java-swt" ,java-swt)))
    (home-page "http://tuxguitar.pw")
    (synopsis "Multitrack tablature editor and player")
    (description
     "TuxGuitar is a guitar tablature editor with player support through midi.
It can display scores and multitrack tabs.  TuxGuitar provides various
additional features, including autoscrolling while playing, note duration
management, bend/slide/vibrato/hammer-on/pull-off effects, support for
tuplets, time signature management, tempo management, gp3/gp4/gp5 import and
export.")
    (license license:lgpl2.1+)))

(define-public pd
  (package
    (name "pd")
    (version "0.47-1")
    (source (origin
              (method url-fetch)
              (uri
               (string-append "http://msp.ucsd.edu/Software/pd-"
                              version ".src.tar.gz"))
              (sha256
               (base32
                "0k5s949kqd7yw97h3m8z81bjz32bis9m4ih8df1z0ymipnafca67"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; no "check" target
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'fix-wish-path
           (lambda _
             (substitute* "src/s_inter.c"
               (("  wish ") (string-append "  " (which "wish8.6") " ")))
             (substitute* "tcl/pd-gui.tcl"
               (("exec wish ") (string-append "exec " (which "wish8.6") " ")))
             #t))
         (add-after 'unpack 'autoconf
           (lambda _ (zero? (system* "bash" "./autogen.sh")))))))
    (native-inputs
     `(("autoconf" ,autoconf)
       ("automake" ,automake)
       ("libtool" ,libtool)
       ("gettext" ,gettext-minimal)
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("tk" ,tk)
       ("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)))
    (home-page "http://puredata.info")
    (synopsis "Visual programming language for artistic performances")
    (description
     "Pure Data (aka Pd) is a visual programming language.  Pd enables
musicians, visual artists, performers, researchers, and developers to create
software graphically, without writing lines of code.  Pd is used to process
and generate sound, video, 2D/3D graphics, and interface sensors, input
devices, and MIDI.  Pd can easily work over local and remote networks to
integrate wearable technology, motor systems, lighting rigs, and other
equipment.  Pd is suitable for learning basic multimedia processing and visual
programming methods as well as for realizing complex systems for large-scale
projects.")
    (license license:bsd-3)))

(define-public portmidi
  (package
    (name "portmidi")
    (version "217")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/portmedia/portmidi/"
                                  version "/portmidi-src-" version ".zip"))
              (sha256
               (base32
                "03rfsk7z6rdahq2ihy5k13qjzgx757f75yqka88v3gc0pn9ais88"))
              (patches (list (search-patch "portmidi-modular-build.patch")))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f ; tests cannot be linked
       #:configure-flags
       (list "-DPORTMIDI_ENABLE_JAVA=Off"
             "-DCMAKE_BUILD_TYPE=Release"    ; needed to have PMALSA set
             "-DPORTMIDI_ENABLE_TEST=Off"))) ; tests fail linking
    (inputs
     `(("alsa-lib" ,alsa-lib)))
    (native-inputs
     `(("unzip" ,unzip)))
    (home-page "http://portmedia.sourceforge.net/portmidi/")
    (synopsis "Library for MIDI I/O")
    (description
     "PortMidi is a library supporting real-time input and output of MIDI data
using a system-independent interface.")
    (license license:expat)))

(define-public portmidi-for-extempore
  (package (inherit portmidi)
    (name "portmidi-for-extempore")
    (version "217")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/extemporelang/portmidi/"
                                  "archive/" version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "0gjikwciyr8kk4y3qiv1pcq58xpgw38ql1m2gs6g0qc1s8sx4235"))))
    (build-system cmake-build-system)
    (arguments `(#:tests? #f)) ; no tests
    (native-inputs '())
    ;; Extempore refuses to build on architectures other than x86_64
    (supported-systems '("x86_64-linux"))
    (home-page "https://github.com/extemporelang/portmidi/")))

(define-public python-pyportmidi
  (package
    (name "python-pyportmidi")
    (version (package-version portmidi))
    (source (package-source portmidi))
    (build-system python-build-system)
    (arguments
     `(#:tests? #f ; no tests included
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'enter-dir
           (lambda _ (chdir "pm_python") #t))
         (add-after 'enter-dir 'fix-setup.py
           (lambda _
             (substitute* "setup.py"
               ;; Use Python 3 syntax
               (("print (\".*\")" _ text)
                (string-append "print(" text ")\n"))
               ;; TODO.txt and CHANGES.txt don't exist
               (("CHANGES =.*") "CHANGES = \"\"\n")
               (("TODO =.*") "TODO = \"\"\n"))
             #t)))))
    (inputs
     `(("portmidi" ,portmidi)
       ("alsa-lib" ,alsa-lib)))
    (native-inputs
     `(("python-cython" ,python-cython)
       ("unzip" ,unzip)))
    (home-page "http://portmedia.sourceforge.net/portmidi/")
    (synopsis "Python bindings to PortMidi")
    (description
     "This package provides Python bindings to the PortMidi library.")
    (license license:expat)))

(define-public frescobaldi
  (package
    (name "frescobaldi")
    (version "3.0.0")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/wbsoft/frescobaldi/releases/download/v"
                    version "/frescobaldi-" version ".tar.gz"))
              (sha256
               (base32
                "15cqhbjbjikr7ljgiq56bz2gxrr38j8p0f78p2vhyzydaviy9a2z"))))
    (build-system python-build-system)
    (arguments `(#:tests? #f)) ; no tests included
    (inputs
     `(("lilypond" ,lilypond)
       ("portmidi" ,portmidi)
       ("python-pyqt" ,python-pyqt)
       ("python-ly" ,python-ly)
       ("python-pyportmidi" ,python-pyportmidi)
       ("poppler" ,poppler)
       ("python-poppler-qt5" ,python-poppler-qt5)
       ("python-sip" ,python-sip)))
    (home-page "http://www.frescobaldi.org/")
    (synopsis "LilyPond sheet music text editor")
    (description
     "Frescobaldi is a LilyPond sheet music text editor with syntax
highlighting and automatic completion.  Among other things, it can render
scores next to the source, can capture input from MIDI or read MusicXML and
ABC files, has a MIDI player for proof-listening, and includes a documentation
browser.")
    (license license:gpl2+)))

(define-public drumstick
  (package
    (name "drumstick")
    (version "1.1.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/drumstick/"
                                  version "/drumstick-" version ".tar.bz2"))
              (sha256
               (base32
                "13pkfqrav30bbcddgf1imd7jk6lpqbxkz1qv31718pdl446jq7df"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f  ; no test target
       #:configure-flags '("-DLIB_SUFFIX=")
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'fix-docbook
           (lambda* (#:key inputs #:allow-other-keys)
             (substitute* "cmake_admin/CreateManpages.cmake"
               (("http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl")
                (string-append (assoc-ref inputs "docbook-xsl")
                               "/xml/xsl/docbook-xsl-"
                               ,(package-version docbook-xsl)
                               "/manpages/docbook.xsl")))
             #t)))))
    (inputs
     `(("qtbase" ,qtbase)
       ("qtsvg" ,qtsvg)
       ("alsa-lib" ,alsa-lib)
       ("fluidsynth" ,fluidsynth)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("libxslt" ,libxslt) ;for xsltproc
       ("docbook-xsl" ,docbook-xsl)
       ("doxygen" ,doxygen)))
    (home-page "http://drumstick.sourceforge.net/")
    (synopsis "C++ MIDI library")
    (description
     "Drumstick is a set of MIDI libraries using C++/Qt5 idioms and style.  It
includes a C++ wrapper around the ALSA library sequencer interface.  A
complementary library provides classes for processing SMF (Standard MIDI
files: .MID/.KAR), Cakewalk (.WRK), and Overture (.OVE) file formats.  A
multiplatform realtime MIDI I/O library is also provided with various output
backends, including ALSA, OSS, Network and FluidSynth.")
    (license license:gpl2+)))

(define-public zynaddsubfx
  (package
    (name "zynaddsubfx")
    (version "3.0.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/zynaddsubfx/zynaddsubfx/"
                    version "/zynaddsubfx-" version ".tar.bz2"))
              (sha256
               (base32
                "09mr23lqc51r7gskry5b7hk84pghdpgn1s4vnrzvx7xpa21gvplm"))))
    (build-system cmake-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         ;; Move SSE compiler optimization flags from generic target to
         ;; athlon64 and core2 targets, because otherwise the build would fail
         ;; on non-Intel machines.
         (add-after 'unpack 'remove-sse-flags-from-generic-target
          (lambda _
            (substitute* "src/CMakeLists.txt"
              (("-msse -msse2 -mfpmath=sse") "")
              (("-march=(athlon64|core2)" flag)
               (string-append flag " -msse -msse2 -mfpmath=sse")))
            #t)))))
    (inputs
     `(("liblo" ,liblo)
       ("ntk" ,ntk)
       ("mesa" ,mesa)
       ("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("fftw" ,fftw)
       ("minixml" ,minixml)
       ("libxpm" ,libxpm)
       ("zlib" ,zlib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://zynaddsubfx.sf.net/")
    (synopsis "Software synthesizer")
    (description
     "ZynAddSubFX is a feature heavy realtime software synthesizer.  It offers
three synthesizer engines, multitimbral and polyphonic synths, microtonal
capabilities, custom envelopes, effects, etc.")
    (license license:gpl2)))

(define-public yoshimi
  (package
    (name "yoshimi")
    (version "1.5.3")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/yoshimi/"
                                  (version-major+minor version)
                                  "/yoshimi-" version ".tar.bz2"))
              (sha256
               (base32
                "0sns35pyw2f74xrv1fxiyf9g9415kvh2rrbdjd60hsiv584nlari"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f ; there are no tests
       #:configure-flags
       (list (string-append "-DCMAKE_INSTALL_DATAROOTDIR="
                            (assoc-ref %outputs "out") "/share"))
       #:phases
       (modify-phases %standard-phases
         (add-before 'configure 'enter-dir
           (lambda _ (chdir "src") #t))
         ;; Move SSE compiler optimization flags from generic target to
         ;; athlon64 and core2 targets, because otherwise the build would fail
         ;; on non-Intel machines.
         (add-after 'unpack 'remove-sse-flags-from-generic-target
          (lambda _
            (substitute* "src/CMakeLists.txt"
              (("-msse -msse2 -mfpmath=sse") "")
              (("-march=(athlon64|core2)" flag)
               (string-append flag " -msse -msse2 -mfpmath=sse")))
            #t))
         ;; Yoshimi tries to find ncurses with pkg-config, but our ncurses
         ;; package does not install .pc files.
         (add-after 'unpack 'find-ncurses
           (lambda _
             (substitute* "src/CMakeLists.txt"
               (("LIBNCURSES REQUIRED") "LIBNCURSES")
               (("NCURSES REQUIRED") "NCURSES")
               (("FATAL_ERROR \"libncurses") "STATUS \"libncurses")
               (("\\$\\{NCURSES_LIBRARIES\\}") "ncurses"))
             #t)))))
    (inputs
     `(("boost" ,boost)
       ("fftwf" ,fftwf)
       ("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("fontconfig" ,fontconfig)
       ("minixml" ,minixml)
       ("mesa" ,mesa)
       ("fltk" ,fltk)
       ("lv2" ,lv2)
       ("readline" ,readline)
       ("ncurses" ,ncurses)
       ("cairo" ,cairo)
       ("zlib" ,zlib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://yoshimi.sourceforge.net/")
    (synopsis "Multi-paradigm software synthesizer")
    (description
     "Yoshimi is a fork of ZynAddSubFX, a feature heavy realtime software
synthesizer.  It offers three synthesizer engines, multitimbral and polyphonic
synths, microtonal capabilities, custom envelopes, effects, etc.  Yoshimi
improves on support for JACK features, such as JACK MIDI.")
    (license license:gpl2)))

(define-public libgig
  (package
    (name "libgig")
    (version "4.0.0")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://download.linuxsampler.org/packages/"
                                  "libgig-" version ".tar.bz2"))
              (sha256
               (base32
                "1wr8mwjmqpnyz6bx9757lspiii1zzn8zfbqsvn2ipzpgqkxv6kaz"))))
    (build-system gnu-build-system)
    (inputs
     `(("libuuid" ,util-linux)
       ("libsndfile" ,libsndfile)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://linuxsampler.org/libgig/")
    (synopsis "C++ library for working with Gigasampler (.gig) files")
    (description
     "Libgig is a C++ library for loading, modifying existing and creating new
Gigasampler (.gig) files and DLS (Downloadable Sounds) Level 1/2 files, KORG
sample based instruments (.KSF and .KMP files), SoundFont v2 (.sf2) files and
AKAI sampler data.  The package includes a couple of command line tools based
on the library.")
    ;; The library and tools are released under the GPL, except the AKAI
    ;; classes which are released under the LGPL.
    (license (list license:gpl2+ license:lgpl2.1+))))

(define-public jack-keyboard
  (package
    (name "jack-keyboard")
    (version "2.5")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://sourceforge/jack-keyboard/jack-keyboard/"
                           version "/jack-keyboard-" version ".tar.gz"))
       (sha256
        (base32
         "0mzmg8aavybcfdlq2yd9d0vscqd6is5p6jzrgfpfm5j3xdcvh2s3"))))
    (build-system gnu-build-system)
    (inputs
     `(("jack" ,jack-1)
       ("lash" ,lash)
       ("gtk+" ,gtk+-2)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://jack-keyboard.sourceforge.net/")
    (synopsis "Virtual MIDI keyboard")
    (description "Jack-keyboard is a virtual MIDI keyboard, a program that
allows you to send JACK MIDI events (i.e. play) using your PC keyboard.")
    (license license:bsd-2)))

(define-public cursynth
  (package
    (name "cursynth")
    (version "1.5")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "mirror://gnu/cursynth/cursynth-"
                          version ".tar.gz"))
      (sha256
       (base32 "1dhphsya41rv8z6yqcv9l6fwbslsds4zh1y56zizi39nd996d40v"))
      (patches (search-patches "cursynth-wave-rand.patch"))))
    (build-system gnu-build-system)
    (native-inputs `(("pkg-config" ,pkg-config)))
    ;; TODO: See https://github.com/iyoko/cursynth/issues/4 which currently
    ;; prevents us from using pulseaudio
    (inputs `(("ncurses" ,ncurses)
              ("alsa" ,alsa-lib)))
    (home-page "https://www.gnu.org/software/cursynth/")
    (synopsis "Polyphonic and MIDI subtractive music synthesizer using curses")
    (description "GNU cursynth is a polyphonic synthesizer that runs
graphically in the terminal.  It is built on a full-featured subtractive
synthesis engine.  Notes and parameter changes may be entered via MIDI or the
computer's keyboard.")
    (license license:gpl3+)))

(define-public qtractor
  (package
    (name "qtractor")
    (version "0.8.3")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://downloads.sourceforge.net/qtractor/"
                                  "qtractor-" version ".tar.gz"))
              (sha256
               (base32
                "0ggqp2pz6r0pvapbbil51fh5185rn0i9kgzm9ff8r8y1135zllk8"))))
    (build-system gnu-build-system)
    (arguments `(#:tests? #f)) ; no "check" target
    (inputs
     `(("qt" ,qtbase)
       ("qtx11extras" ,qtx11extras)
       ("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("libsndfile" ,libsndfile)
       ("ladspa" ,ladspa)
       ("lv2" ,lv2)
       ("lilv" ,lilv)
       ("suil" ,suil)
       ("libsamplerate" ,libsamplerate)
       ("libvorbis" ,libvorbis)
       ("libmad" ,libmad)
       ("rubberband" ,rubberband)
       ("liblo" ,liblo)
       ("zlib" ,zlib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("qttools" ,qttools)))
    (home-page "http://qtractor.org/")
    (synopsis "Audio/MIDI multi-track sequencer")
    (description
     "Qtractor is an Audio/MIDI multi-track sequencer application.  It uses
JACK for audio and ALSA sequencer for MIDI as multimedia infrastructures and
follows a traditional multi-track tape recorder control paradigm.")
    (license license:gpl2+)))

(define-public ams-lv2
  (package
    (name "ams-lv2")
    (version "1.2.1")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://github.com/blablack/ams-lv2/"
                           "archive/" version ".tar.gz"))
       (file-name (string-append name "-" version ".tar.gz"))
       (sha256
        (base32
         "1xacxyzqcj83g9c1gwfn36gg1c6yi15v7km4vidfidrjzb4x27fq"))))
    (build-system waf-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'remove-sse-flags
           (lambda* (#:key system #:allow-other-keys)
             (when (not (or (string-prefix? "x86_64" system)
                            (string-prefix? "i686" system)))
               (substitute* "wscript"
                 (("'-msse', '-mfpmath=sse', ") ""))
             #t))))
       #:tests? #f)) ; no tests
    (inputs
     `(("lv2" ,lv2)
       ("lvtk" ,lvtk)
       ("gtkmm" ,gtkmm-2)
       ("gtk" ,gtk+-2)
       ("cairo" ,cairo)
       ("fftw" ,fftw)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "https://objectivewave.wordpress.com/ams-lv2/")
    (synopsis "Port of Alsa Modular Synth internal modules into LV2")
    (description "This set of LV2 plugins is a port of the internal modules
found in Alsa Modular Synth.  These plugins are used to create modular
synthesizers and contain: VCO, VCF, VCA, LFO, slew limiter, envelopes, sample
and hold, etc.")
    (license license:gpl2)))

(define-public gxtuner
  (package
    (name "gxtuner")
    (version "2.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/gxtuner/"
                                  "archive/v" version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "1hn5qjac7qd00v0sp7ijhhc3sb26ks9bni06nngivva21h61xrjr"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             (string-append "INCLUDE_L_DIR="
                            (assoc-ref %build-inputs "zita-resampler")
                            "/include/"))
       #:phases
       (modify-phases %standard-phases
         (delete 'configure))))
    (inputs
     `(("gtk+" ,gtk+)
       ("jack" ,jack-1)
       ("fftwf" ,fftwf)
       ("cairo" ,cairo)
       ("zita-resampler" ,zita-resampler)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "https://github.com/brummer10/gxtuner")
    (synopsis "Guitar tuner")
    (description "GXtuner is a simple guitar tuner for JACK with an
analogue-like user interface.")
    (license license:gpl2+)))

(define-public mod-host
  ;; The last release was in 2014 but since then more than 140 commits have
  ;; been made.
  (let ((commit "299a3977476e8eb0285837fbd7522cec506a11de")
        (revision "2"))
    (package
      (name "mod-host")
      (version (string-append "0.10.6-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/moddevices/mod-host")
                      (commit commit)))
                (sha256
                 (base32
                  "128q7p5mph086v954rqnafalfbkyvhgwclaq6ks6swrhj45wnag6"))
                (file-name (string-append name "-" version "-checkout"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f ; no tests included
         #:make-flags
         (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
               "CC=gcc")
         #:phases
         (modify-phases %standard-phases
           (delete 'configure)
           (add-after 'unpack 'fix-jack-installation-directory
             (lambda _
               ;; Do not attempt to install files to output of "jack" package.
               (substitute* "Makefile"
                 (("\\$\\(shell pkg-config --variable=libdir jack\\)")
                  "lib"))
               #t)))))
      (inputs
       `(("lilv" ,lilv)
         ("fftw" ,fftw)
         ("fftwf" ,fftwf)
         ("lv2" ,lv2)
         ("jack" ,jack-1)
         ("readline" ,readline)))
      (native-inputs
       `(("pkg-config" ,pkg-config)
         ("python" ,python-2)))
      (home-page "https://github.com/moddevices/mod-host")
      (synopsis "LV2 host for Jack controllable via socket or command line")
      (description "mod-host is an LV2 plugin host for JACK, controllable via
socket or command line.")
      (license license:gpl3+))))

(define-public pianobar
  (package
    (name "pianobar")
    (version "2016.06.02")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/PromyLOPh/"
                                  name "/archive/" version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "1hi5rr6jcr0kwf4xfz007ndwkjkp287lhwlsgfz6iryqa5n6jzcp"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f ; no tests
       #:make-flags (list "CC=gcc" "CFLAGS=-std=c99"
                          (string-append "PREFIX=" %output))
       #:phases (modify-phases %standard-phases
                  (delete 'configure))))
    (inputs
     `(("ao" ,ao)
       ("curl" ,curl)
       ("libgcrypt" ,libgcrypt)
       ("json-c" ,json-c)
       ("ffmpeg" ,ffmpeg)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://6xq.net/projects/pianobar/")
    (synopsis "Console-based pandora.com player")
    (description "pianobar is a console-based music player for the
personalized online radio pandora.com.  It has configurable keys for playing
and managing stations, can be controlled remotely via fifo, and can run
event-based scripts for scrobbling, notifications, etc.")
    (license license:expat)))

(define-public python-mutagen
  (package
    (name "python-mutagen")
    (version "1.38")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "mutagen" version))
              (sha256
               (base32
                "0rl7sxn1rcjl48fwga3dqf9f6pzspsny4ngxyf6pp337mrq0z693"))))
    (build-system python-build-system)
    (native-inputs
     `(("python-pytest" ,python-pytest)))
    (home-page "https://bitbucket.org/lazka/mutagen")
    (synopsis "Read and write audio tags")
    (description "Mutagen is a Python module to handle audio metadata.  It
supports ASF, FLAC, M4A, Monkey’s Audio, MP3, Musepack, Ogg FLAC, Ogg Speex, Ogg
Theora, Ogg Vorbis, True Audio, WavPack and OptimFROG audio files.  All versions
of ID3v2 are supported, and all standard ID3v2.4 frames are parsed.  It can read
Xing headers to accurately calculate the bitrate and length of MP3s.  ID3 and
APEv2 tags can be edited regardless of audio format.  It can also manipulate Ogg
streams on an individual packet/page level.")
    (license license:gpl2))) ; "later version" never mentioned

(define-public python2-mutagen
  (package-with-python2 python-mutagen))

(define-public python-musicbrainzngs
  (package
    (name "python-musicbrainzngs")
    (version "0.6")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "musicbrainzngs" version))
              (sha256
               (base32
                "1dddarpjawryll2wss65xq3v9q8ln8dan7984l5dxzqx88d2dvr8"))))
    (build-system python-build-system)
    (arguments
     '(;; The tests fail suffer from race conditions:
       ;; https://github.com/alastair/python-musicbrainzngs/issues/211
       #:tests? #f))
    (home-page "https://python-musicbrainzngs.readthedocs.org/")
    (synopsis "Python bindings for MusicBrainz NGS webservice")
    (description "Musicbrainzngs implements Python bindings of the MusicBrainz
web service.  This library can be used to retrieve music metadata from the
MusicBrainz database.")
    ;; 'musicbrainzngs/compat.py' is ISC licensed.
    (license (list license:bsd-2 license:isc))))

(define-public python2-musicbrainzngs
  (package-with-python2 python-musicbrainzngs))

(define-public python2-pyechonest
  (package
    (name "python2-pyechonest")
    (version "9.0.0")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "pyechonest" version))
              (sha256
               (base32
                "1584nira3rkiman9dm81kdshihmkj21s8navndz2l8spnjwb790x"))))
    (build-system python-build-system)
    (arguments
     `(;; Python 3 is not supported:
       ;; https://github.com/echonest/pyechonest/issues/42
       #:python ,python-2))
    (home-page "https://github.com/echonest/pyechonest")
    (synopsis "Python interface to The Echo Nest APIs")
    (description "Pyechonest is a Python library for the Echo Nest API.  With
Pyechonest you have Python access to the entire set of API methods including:

@enumerate
@item artist - search for artists by name, description, or attribute, and get
back detailed information about any artist including audio, similar artists,
blogs, familiarity, hotttnesss, news, reviews, urls and video.
@item song - search songs by artist, title, description, or attribute (tempo,
duration, etc) and get detailed information back about each song, such as
hotttnesss, audio_summary, or tracks.
@item track - upload a track to the Echo Nest and receive summary information
about the track including key, duration, mode, tempo, time signature along with
detailed track info including timbre, pitch, rhythm and loudness information.
@end enumerate\n")
    (license license:bsd-3)))

(define-public python-pylast
  (package
    (name "python-pylast")
    (version "1.9.0")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "pylast" version))
              (sha256
               (base32
                "190c6sicc80v21wbbwbq771nqmxw4r6aqmxs22ndj177rc2l275f"))))
    (build-system python-build-system)
    (arguments
     '(#:tests? #f)) ; FIXME: Requires unpackaged python-flaky.
    (native-inputs
     `(("python-coverage" ,python-coverage)
       ("python-mock" ,python-mock)
       ("python-pep8" ,python-pep8)
       ("python-pytest" ,python-pytest)
       ("python-pyflakes" ,python-pyflakes)
       ("python-pyyaml" ,python-pyyaml)))
    (propagated-inputs
     `(("python-six" ,python-six)))
    (home-page "https://github.com/pylast/pylast")
    (synopsis "Python interface to Last.fm and Libre.fm")
    (description "A Python interface to Last.fm and other API-compatible
websites such as Libre.fm.")
    (license license:asl2.0)))

(define-public python2-pylast
  (package-with-python2 python-pylast))

(define-public beets
  (package
    (name "beets")
    (version "1.4.5")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "beets" version))
              (sha256
               (base32
                "1z02j871gc8l9mnd344qy9z8akigikgmc22r15ns6driqb2qishv"))))
    (build-system python-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'set-HOME
           (lambda _ (setenv "HOME" (string-append (getcwd) "/tmp"))))
         (replace 'check
           (lambda _ (zero? (system* "nosetests" "-v")))))))
    (native-inputs
     `(("python-beautifulsoup4" ,python-beautifulsoup4)
       ("python-flask" ,python-flask)
       ("python-mock" ,python-mock)
       ("python-mpd2" ,python-mpd2)
       ("python-nose" ,python-nose)
       ("python-pathlib" ,python-pathlib)
       ("python-pyxdg" ,python-pyxdg)
       ("python-pylast" ,python-pylast)
       ("python-rarfile" ,python-rarfile)
       ("python-responses" ,python-responses)))
    ;; TODO: Install optional plugins and dependencies.
    (inputs
     `(("python-discogs-client" ,python-discogs-client)
       ("python-jellyfish" ,python-jellyfish)
       ("python-munkres" ,python-munkres)
       ("python-musicbrainzngs" ,python-musicbrainzngs)
       ("python-mutagen" ,python-mutagen)
       ("python-pyyaml" ,python-pyyaml)
       ("python-unidecode" ,python-unidecode)))
    (home-page "http://beets.io")
    (synopsis "Music organizer")
    (description "The purpose of beets is to get your music collection right
once and for all.  It catalogs your collection, automatically improving its
metadata as it goes using the MusicBrainz database.  Then it provides a variety
of tools for manipulating and accessing your music.")
    (license license:expat)))

(define-public milkytracker
  (package
    (name "milkytracker")
    (version "1.01.00")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/milkytracker/"
                                  "MilkyTracker/archive/v"
                                  version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "1dvnddsnn9c83lz4dlm0cfjpc0m524amfkbalxbswdy0qc8cj1wv"))
              (modules '((guix build utils)))
              ;; Remove non-FSDG compliant sample songs.
              (snippet
               '(begin
                  (delete-file-recursively "resources/music")
                  (substitute* "CMakeLists.txt"
                    (("add_subdirectory\\(resources/music\\)") ""))))))
    (build-system cmake-build-system)
    (arguments
     '(#:tests? #f)) ; no check target
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("sdl" ,sdl2)
       ("zlib" ,zlib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (synopsis "Music tracker for working with .MOD/.XM module files")
    (description "MilkyTracker is a music application for creating .MOD and .XM
module files.  It attempts to recreate the module replay and user experience of
the popular DOS program Fasttracker II, with special playback modes available
for improved Amiga ProTracker 2/3 compatibility.")
    (home-page "http://milkytracker.titandemo.org/")
    ;; 'src/milkyplay' is under Modified BSD, the rest is under GPL3 or later.
    (license (list license:bsd-3 license:gpl3+))))

(define-public schismtracker
  (package
    (name "schismtracker")
    (version "20170420")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/" name "/" name "/archive/"
                    version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "0k06vri29ayaq7mzsik3yywh6zdar2nfpkav2sp6g2rjl6k6vi5z"))
              (modules '((guix build utils)))
              (snippet
               ;; Remove use of __DATE__ and __TIME__ for reproducibility.
               `(substitute* "schism/version.c"
                  (("Schism Tracker built %s %s.*$")
                   (string-append "Schism Tracker version " ,version "\");"))))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'autoconf
           (lambda _ (zero? (system* "autoreconf" "-vfi"))))
         (add-before 'configure 'link-libm
           (lambda _ (setenv "LIBS" "-lm") #t)))))
    (native-inputs
     `(("autoconf" ,autoconf)
       ("automake" ,automake)
       ("python" ,python)))
    (inputs
     `(("alsa-lib" ,alsa-lib) ; for asound dependency
       ("libx11" ,libx11)
       ("libxext" ,libxext)
       ("sdl" ,sdl)))
    (home-page "http://schismtracker.org")
    (synopsis "Oldschool sample-based music composition tool")
    (description
     "Schism Tracker is a reimplementation of Impulse Tracker, a program used to
create high quality music without the requirements of specialized, expensive
equipment, and with a unique \"finger feel\" that is difficult to replicate in
part.  The player is based on a highly modified version of the ModPlug engine,
with a number of bugfixes and changes to improve IT playback.")
    (license license:gpl2+)))

(define-public sooperlooper
  (package
    (name "sooperlooper")
    (version "1.7.3")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://essej.net/sooperlooper/sooperlooper-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0n2gdxw1fx8nxxnpzf4sj0kp6k6zi1yq59cbz6qqzcnsnpnvszbs"))
              (patches (search-patches "sooperlooper-build-with-wx-30.patch"))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags (list "CXXFLAGS=-std=gnu++11")
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'add-sigc++-includes
           (lambda* (#:key inputs #:allow-other-keys)
             (let ((sig (assoc-ref inputs "libsigc++"))
                   (xml (assoc-ref inputs "libxml2"))
                   (cwd (getcwd)))
               (setenv "CPATH"
                       (string-append sig "/include/sigc++-2.0:"
                                      sig "/lib/sigc++-2.0/include:"
                                      xml "/include/libxml2/:"
                                      cwd "/libs/pbd:"
                                      cwd "/libs/midi++")))
             (substitute* '("src/control_osc.hpp"
                            "src/gui/app_frame.hpp"
                            "src/gui/config_panel.hpp"
                            "src/gui/keys_panel.hpp"
                            "src/gui/latency_panel.hpp"
                            "src/gui/main_panel.hpp"
                            "src/gui/midi_bind_panel.hpp"
                            "src/gui/prefs_dialog.hpp")
               (("sigc\\+\\+/object.h")
                "sigc++/sigc++.h"))
             (substitute* '("src/engine.cpp"
                            "src/gui/latency_panel.cpp"
                            "src/gui/looper_panel.cpp"
                            "src/gui/main_panel.cpp")
               (("(\\(| )bind " _ pre)
                (string-append pre "sigc::bind ")))
             #t))
         (add-after 'unpack 'fix-xpm-warnings
           (lambda _
             (substitute* (find-files "." "\\.xpm$")
               (("static char") "static const char"))
             #t)))))
    (inputs
     `(("jack" ,jack-1)
       ("alsa-lib" ,alsa-lib)
       ("wxwidgets" ,wxwidgets-gtk2)
       ("libsndfile" ,libsndfile)
       ("libsamplerate" ,libsamplerate)
       ("liblo" ,liblo)
       ("rubberband" ,rubberband)
       ("libxml2" ,libxml2)
       ("libsigc++" ,libsigc++)
       ("ncurses" ,ncurses)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "http://essej.net/sooperlooper/")
    (synopsis "Live looping sampler")
    (description
     "SooperLooper is a live looping sampler capable of immediate loop
recording, overdubbing, multiplying, reversing and more. It allows for
multiple simultaneous multi-channel loops limited only by your computer's
available memory.")
    (license license:gpl2+)))

(define-public moc
  (package
    (name "moc")
    (version "2.5.2")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://ftp.daper.net/pub/soft/"
                                  name "/stable/"
                                  name "-" version ".tar.bz2"))
              (sha256
               (base32
                "026v977kwb0wbmlmf6mnik328plxg8wykfx9ryvqhirac0aq39pk"))
              (modules '((guix build utils)))
              (snippet
               ;; Remove use of __DATE__ and __TIME__ for reproducibility.
               '(substitute* "main.c"
                  (("printf \\(\"            Built : %s\", __DATE__\\);") "")
                  (("printf \\(\" %s\", __TIME__\\);") "")))))
    (build-system gnu-build-system)
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("curl" ,curl)
       ("faad2" ,faad2)
       ("ffmpeg" ,ffmpeg)
       ("file" ,file)
       ("jack" ,jack-1)
       ("libid3tag" ,libid3tag)
       ("libltdl" ,libltdl)
       ("libmodplug" ,libmodplug)
       ("libmpcdec" ,libmpcdec)
       ("libmad" ,libmad)
       ("libogg" ,libogg)
       ("libvorbis" ,libvorbis)
       ("ncurses" ,ncurses)
       ("openssl" ,openssl)
       ("sasl" ,cyrus-sasl)
       ("speex" ,speex)
       ("taglib" ,taglib)
       ("wavpack" ,wavpack)
       ("zlib" ,zlib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (synopsis "Console audio player designed to be powerful and easy to use")
    (description
     "Music on Console is a console audio player that supports many file
formats, including most audio formats recognized by FFMpeg.")
    (home-page "http://moc.daper.net")
    (license license:gpl2+)))

(define-public midicsv
  (package
    (name "midicsv")
    (version "1.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "http://www.fourmilab.ch/webtools/midicsv/"
                                  name "-" version ".tar.gz"))
              (sha256
               (base32
                "1vvhk2nf9ilfw0wchmxy8l13hbw9cnpz079nsx5srsy4nnd78nkw"))))
    (build-system gnu-build-system)
    (arguments
     `(#:phases (modify-phases %standard-phases (delete 'configure))
       #:make-flags (list "CC=gcc" (string-append "INSTALL_DEST=" %output))))
    (synopsis "Convert MIDI files to and from CSV")
    (description
     "Midicsv reads a standard MIDI file and decodes it into a comma-separated
value file (CSV), which preserves all the information in the MIDI file.  The
ASCII CSV file may be loaded into a spreadsheet or database application, or
processed by a program to transform the MIDI data (for example, to key
transpose a composition or extract a track from a multi-track sequence).  A
CSV file in the format created by midicsv may be converted back into a
standard MIDI file with the csvmidi program.")
    (home-page "http://www.fourmilab.ch/webtools/midicsv/")
    (license license:public-domain)))

(define-public gx-guvnor-lv2
  (package
    (name "gx-guvnor-lv2")
    (version "0.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/GxGuvnor.lv2/"
                                  "archive/v" version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "0rnfvrvs8qmmldyfmx4llyly33zp68448gx40ywdwj42x0mam92p"))))
    (build-system gnu-build-system)
    (arguments
     `(;; The check target is used only to output a warning.
       #:tests? #f
       #:make-flags
       (list (string-append "DESTDIR=" (assoc-ref %outputs "out")))
       #:phases
       (modify-phases %standard-phases
         (replace 'configure
           (lambda _
             (substitute* "Makefile"
               (("INSTALL_DIR = .*") "INSTALL_DIR=/lib/lv2\n"))
             #t)))))
    (inputs
     `(("lv2" ,lv2)))
    (home-page "https://github.com/brummer10/GxGuvnor.lv2")
    (synopsis "Overdrive/distortion pedal simulation")
    (description "This package provides the LV2 plugin \"GxGuvnor\", a
simulation of an overdrive or distortion pedal for guitars.")
    ;; The LICENSE file says GPLv3 but the license headers in the files say
    ;; GPLv2 or later.
    (license license:gpl2+)))

(define-public gx-vbass-preamp-lv2
  (let ((commit "0e599abab10c7669dd444e5d06f671c2fc1b9c6c")
        (revision "1"))
    (package (inherit gx-guvnor-lv2)
      (name "gx-vbass-preamp-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxVBassPreAmp.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "1dzksdfrva666gpi62fd2ni9rhf18sl917f1894qr0b17pbdh9k1"))
                (file-name (string-append name "-" version "-checkout"))))
      (arguments
       (substitute-keyword-arguments (package-arguments gx-guvnor-lv2)
         ((#:phases phases)
          `(modify-phases ,phases
             (replace 'configure
               (lambda _
                 (substitute* "Makefile"
                   (("INSTALL_DIR = .*") "INSTALL_DIR=/lib/lv2\n")
                   (("install : all") "install :"))
                 #t))))))
      (home-page "https://github.com/brummer10/GxVBassPreAmp.lv2")
      (synopsis "Simulation of the Vox Venue Bass 100 Pre Amp Section")
      (description "This package provides the LV2 plugin \"GxVBassPreAmp\", a
pre-amplifier simulation modelled after the 1984 Vox Venue Bass 100 Pre Amp
Section."))))

(define-public gx-overdriver-lv2
  (let ((commit "ed71801987449414bf3adaa0dbfac68e8775f1ce")
        (revision "1"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-overdriver-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxOverDriver.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "13j614jh525fbkby79nnzwj0z1ac0c9wclyn5pfqvkmx6a7j24r8"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxOverDriver.lv2")
      (synopsis "Overdrive effect with level and tone control")
      (description "This package provides the LV2 plugin \"GxOverDriver\", an
overdrive effect."))))

(define-public gx-tone-mender-lv2
  (let ((commit "b6780b4a3e4782b3ed0e5882d6788f178aed138f")
        (revision "1"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-tone-mender-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxToneMender.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "07qdcfsvv2vdnfnjh91pfgvjdcs5y91nvwfm8c0z8fp6b4bk7a9q"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxToneMender.lv2")
      (synopsis "Clean boost with a 3-knob tonestack")
      (description "This package provides the LV2 plugin \"GxToneMender\", a
clean boost effect with a 3-knob tonestack."))))

(define-public gx-push-pull-lv2
  (let ((commit "7f76ae2068498643ac8671ee0930b13ee3fd8eb5")
        (revision "1"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-push-pull-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxPushPull.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "12f5hwck2irph0gjbj8xy8jqcqdwb8l1hlwf29k0clz52h1jhb5q"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxPushPull.lv2")
      (synopsis "Octave up push pull transistor fuzz simulation")
      (description "This package provides the LV2 plugin \"GxPushPull\", a
simulation of a push pull transistor fuzz effect with added high octave."))))

(define-public gx-suppa-tone-bender-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-suppa-tone-bender-lv2")
    (version "0.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/"
                                  "GxSuppaToneBender.lv2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "1j90fns87035sfr6bxs4cvqxbyy3pqjhihx1nis8xajn202nl1hx"))
              (file-name (string-append name "-" version ".tar.gz"))))
    (home-page "https://github.com/brummer10/GxSuppaToneBender.lv2")
    (synopsis "Simulation of the Vox Suppa Tone Bender pedal")
    (description "This package provides the LV2 plugin
\"GxSuppaToneBender\", a simulation modelled after the Vox Suppa Tone Bender
pedal.")))

(define-public gx-saturator-lv2
  (let ((commit "0b581ac85c515325b9f16e51937cae6e1bf81a0a")
        (revision "2"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-saturator-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxSaturator.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "1cl785pzq8zk55m1rnhfd6qsabci6kpf4pf002gwr91vagyq246z"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxSaturator.lv2")
      (synopsis "Saturation effect")
      (description "This package provides the LV2 plugin \"GxSaturator\", a
saturation effect."))))

(define-public gx-hyperion-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-hyperion-lv2")
    (version "0.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/"
                                  "GxHyperion.lv2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "1pd7l33a14kq73wavgqq7csw4n3mwjz9d5rxaj0jgsyxd3llp3wh"))
              (file-name (string-append name "-" version ".tar.gz"))))
    (home-page "https://github.com/brummer10/GxHyperion.lv2")
    (synopsis "Simulation of the Hyperion Fuzz pedal")
    (description "This package provides the LV2 plugin \"GxHyperion\", a
simulation of the Hyperion Fuzz pedal.")))

(define-public gx-voodoo-fuzz-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-voodoo-fuzz-lv2")
    (version "0.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/"
                                  "GxVoodoFuzz.lv2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0cc8sg7q493bs6pcq4ipqp6czpxv04nh9yvn8kq2x65ni2208n2f"))
              (file-name (string-append name "-" version ".tar.gz"))))
    (home-page "https://github.com/brummer10/GxVoodoFuzz.lv2")
    (synopsis "Fuzz effect modelled after the Voodoo Lab SuperFuzz")
    (description "This package provides the LV2 plugin \"GxVoodooFuzz\", a
simulation modelled after the Voodoo Lab SuperFuzz pedal.  It's basically a
Bosstone circuit, followed by the tone control of the FoxToneMachine in
parallel with a DarkBooster, followed by a volume control.")))

(define-public gx-super-fuzz-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-super-fuzz-lv2")
    (version "0.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/"
                                  "GxSuperFuzz.lv2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0pnivq05f1kji8c5jxsqdzhdfk3xn422v2d1x20x3jfsxnaf115x"))
              (file-name (string-append name "-" version ".tar.gz"))))
    (home-page "https://github.com/brummer10/GxSuperFuzz.lv2")
    (synopsis "Fuzz effect modelled after the UniVox SuperFuzz")
    (description "This package provides the LV2 plugin \"GxSuperFuzz\", an
analog simulation of the UniVox SuperFuzz pedal.  In this simulation the trim
pot, which is usually in the housing, is exposed as a control parameter.  It
adjusts the amount of harmonics.")))

(define-public gx-vintage-fuzz-master-lv2
  (package (inherit gx-guvnor-lv2)
    (name "gx-vintage-fuzz-master-lv2")
    (version "0.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/brummer10/"
                                  "GxVintageFuzzMaster.lv2/archive/v"
                                  version ".tar.gz"))
              (sha256
               (base32
                "0bdkfj6xi2g4izfw3pmr4i0nqzg8jnkdwc23x9ifxwc6p1kbayzk"))
              (file-name (string-append name "-" version ".tar.gz"))))
    (home-page "https://github.com/brummer10/GxVintageFuzzMaster.lv2")
    (synopsis "Fuzz effect simulation of the vintage Fuzz Master")
    (description "This package provides the LV2 plugin
\"GxVintageFuzzMaster\", a simulation of the vintage Fuzz Master pedal.")))

(define-public gx-slow-gear-lv2
  (let ((commit "cb852e0426f4e6fe077e7f1ede73a4da335cfc5e")
        (revision "2"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-slow-gear-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxSlowGear.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "0dp7afi1r3kzciiyn1hrkz6arsq47ys9sx5g4b7xa9k1dv92ishp"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxSlowGear.lv2")
      (synopsis "Slow gear audio effect")
      (description "This package provides the LV2 plugin \"GxSlowGear\", a
slow gear audio effect to produce volume swells."))))

(define-public gx-switchless-wah-lv2
  (let ((commit "7b08691203314612999f0ce2328cdc1161cd6665")
        (revision "2"))
    (package (inherit gx-vbass-preamp-lv2)
      (name "gx-switchless-wah-lv2")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/brummer10/GxSwitchlessWah.lv2")
                      (commit commit)))
                (sha256
                 (base32
                  "04jqfpncmrrqn34p21w4v9m2x5a5wsqwbm4f3byxvq4vcibwxzk2"))
                (file-name (string-append name "-" version "-checkout"))))
      (home-page "https://github.com/brummer10/GxSwitchlessWah.lv2")
      (synopsis "Wah emulation with switchless activation")
      (description "This package provides the LV2 plugin \"GxSwitchlessWah\",
a simulation of an analog Wah pedal with switchless activation."))))

(define-public mod-utilities
  (let ((commit "7cdeeac26ae682730740105ece121d4dddb8ba3f")
        (revision "1"))
    (package
      (name "mod-utilities")
      (version (string-append "0-" revision "." (string-take commit 9)))
      (source (origin
                (method git-fetch)
                (uri (git-reference
                      (url "https://github.com/moddevices/mod-utilities.git")
                      (commit commit)))
                (sha256
                 (base32
                  "1ilnkbrmwrszxvc21qlb86h29yz7cnc6rcp0jmna1y693ny2qhf4"))
                (file-name (string-append name "-" version "-checkout"))))
      (build-system gnu-build-system)
      (arguments
       `(#:tests? #f ; there are no tests
         #:make-flags
         (list (string-append "INSTALL_PATH="
                              (assoc-ref %outputs "out")
                              "/lib/lv2"))
         #:phases
         (modify-phases %standard-phases
           (delete 'configure))))
      (inputs
       `(("lv2" ,lv2)))
      (home-page "https://github.com/moddevices/mod-utilities")
      (synopsis "LV2 utility plugins")
      (description "This package provides LV2 audio utility plugins, such as
filters, crossovers, simple gain plugins without zipper noise, switch box
plugins, a switch trigger, a toggle switch, and a peakmeter.")
      (license license:gpl2+))))

(define-public ingen
  (let ((commit "fd147d0b888090bfb897505852c1f25dbdf77e18")
        (revision "1"))
    (package
      (name "ingen")
      (version (string-append "0.0.0-" revision "."
                              (string-take commit 9)))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "http://git.drobilla.net/ingen.git")
               (commit commit)))
         (file-name (string-append name "-" version "-checkout"))
         (sha256
          (base32
           "1qmg79962my82c43vyrv5sxbqci9c7gc2s9bwaaqd0fcf08xcz1z"))))
      (build-system waf-build-system)
      (arguments
       `(#:tests? #f ; no "check" target
         #:configure-flags (list "--no-webkit")
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'patch-wscript
             (lambda* (#:key outputs #:allow-other-keys)
               (let ((out (assoc-ref outputs "out")))
                 (substitute* "wscript"
                   ;; FIXME: Our version of lv2specgen.py does not behave as
                   ;; expected.  Maybe this requires a development version of
                   ;; LV2.
                   (("lv2specgen.py") "touch ingen.lv2/ingen.html; echo")
                   ;; Add libraries to RUNPATH.
                   (("^(.+)target.*= 'src/ingen/ingen'," line prefix)
                    (string-append prefix
                                   "linkflags=[\"-Wl,-rpath="
                                   out "/lib" "\"]," line)))
                 (substitute* '("src/wscript"
                                "src/server/wscript")
                   ;; Add libraries to RUNPATH.
                   (("bld.env.PTHREAD_LINKFLAGS" line)
                    (string-append line
                                   " + [\"-Wl,-rpath=" out "/lib" "\"]")))
                 (substitute* "src/client/wscript"
                   ;; Add libraries to RUNPATH.
                   (("^(.+)target.*= 'ingen_client'," line prefix)
                    (string-append prefix
                                   "linkflags=[\"-Wl,-rpath="
                                   out "/lib" "\"]," line)))
                 (substitute* "src/gui/wscript"
                   ;; Add libraries to RUNPATH.
                   (("^(.+)target.* = 'ingen_gui.*" line prefix)
                    (string-append prefix
                                   "linkflags=[\"-Wl,-rpath="
                                   out "/lib" "\"]," line))))
               #t)))))
      (inputs
       `(("boost" ,boost)
         ("python-rdflib" ,python-rdflib)
         ("python" ,python)
         ("jack" ,jack-1)
         ("lv2" ,lv2)
         ("lilv" ,lilv)
         ("raul" ,raul-devel)
         ("ganv" ,ganv-devel)
         ("suil" ,suil)
         ("serd" ,serd)
         ("sord" ,sord)
         ("sratom" ,sratom)
         ("gtkmm" ,gtkmm-2)))
      (native-inputs
       `(("pkg-config" ,pkg-config)
         ("python-pygments" ,python-pygments)))
      (home-page "http://drobilla.net/software/ingen")
      (synopsis "Modular audio processing system")
      (description "Ingen is a modular audio processing system for JACK and
LV2 based systems.  Ingen is built around LV2 technology and a strict
separation of engine from user interface.  The engine is controlled
exclusively through a protocol, and can execute as a headless process, with an
in-process GUI, or as an LV2 plugin.  The GUI can run as a program which
communicates over a Unix or TCP/IP socket, or as an embeddable LV2 GUI which
communicates via LV2 ports.  Any saved Ingen graph can be loaded as an LV2
plugin on any system where Ingen is installed.  This allows users to visually
develop custom plugins for use in other applications without programming.")
      (license license:agpl3+))))

(define-public qmidiarp
  (package
    (name "qmidiarp")
    (version "0.6.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "mirror://sourceforge/qmidiarp/qmidiarp/"
                                  version "/qmidiarp-" version ".tar.bz2"))
              (sha256
               (base32
                "1gkfv8ajgf86kbn6j5ilfc1zlz17gdi9yxzywqd6jwff4xlm75hx"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list "--enable-qt5"
             "CXXFLAGS=-std=gnu++11")))
    (inputs
     `(("qtbase" ,qtbase)
       ("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("liblo" ,liblo)
       ("lv2" ,lv2)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("qttools" ,qttools)))
    (home-page "http://qmidiarp.sourceforge.net/")
    (synopsis "MIDI arpeggiator")
    (description "QMidiArp is an advanced MIDI arpeggiator, programmable step
sequencer and LFO.  It can hold any number of arpeggiator, sequencer, or LFO
modules running in parallel.")
    (license license:gpl2+)))

(define-public seq24
  (package
    (name "seq24")
    (version "0.9.3")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://launchpad.net/seq24/trunk/"
                                  version "/+download/seq24-"
                                  version ".tar.bz2"))
              (sha256
               (base32
                "12dphdhnvfk1k0vmagi1v2lhyxjyj1j3cz6ksjw0ydcvid1x8ap2"))
              (patches (search-patches "seq24-rename-mutex.patch"))))
    (build-system gnu-build-system)
    (arguments
     `(#:configure-flags
       (list "CXXFLAGS=-std=gnu++11")))
    (inputs
     `(("gtkmm" ,gtkmm-2)
       ("alsa-lib" ,alsa-lib)
       ("jack" ,jack-1)
       ("lash" ,lash)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (home-page "https://edge.launchpad.net/seq24/")
    (synopsis "Real-time MIDI sequencer")
    (description "Seq24 is a real-time MIDI sequencer.  It was created to
provide a very simple interface for editing and playing MIDI loops.")
    (license license:gpl2+)))

(define-public python-discogs-client
  (package
    (name "python-discogs-client")
    (version "2.2.1")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "discogs-client" version))
              (sha256
               (base32
                "053ld2psh0yj3z0kg6z5bn4y3cr562m727494n0ayhgzbkjbacly"))))
    (build-system python-build-system)
    (propagated-inputs
     `(("python-oauthlib" ,python-oauthlib)
       ("python-requests" ,python-requests)))
    (native-inputs
     `(("python-six" ,python-six)))
    (home-page "https://github.com/discogs/discogs_client")
    (synopsis "Official Python client for the Discogs API")
    (description "This is the official Discogs API client for Python. It enables
you to query the Discogs database for information on artists, releases, labels,
users, Marketplace listings, and more.  It also supports OAuth 1.0a
authorization, which allows you to change user data such as profile information,
collections and wantlists, inventory, and orders.")
    (license license:bsd-2)))

(define-public python2-discogs-client
  (package-with-python2 python-discogs-client))

(define-public libsmf
  (package
    (name "libsmf")
    (version "1.3")
    (source
     (origin
       (method url-fetch)
       ;; SF download page says development moved, but the link it points to
       ;; is gone (https://github.com/nilsgey/libsmf).  Someone else adopted
       ;; it but made no release so far (https://github.com/stump/libsmf).
       (uri (string-append "mirror://sourceforge/libsmf/libsmf/"
                           version "/libsmf-" version ".tar.gz"))
       (sha256
        (base32
         "16c0n40h0r56gzbh5ypxa4dwp296dan3jminml2qkb4lvqarym6k"))))
    (build-system gnu-build-system)
    (outputs '("out"
               "static")) ; 88KiB of .a files
    (arguments
     `(#:phases
       (modify-phases %standard-phases
         (add-after 'install 'move-static-libraries
           (lambda* (#:key outputs #:allow-other-keys)
             ;; Move static libraries to the "static" output.
             (let* ((out    (assoc-ref outputs "out"))
                    (lib    (string-append out "/lib"))
                    (static (assoc-ref outputs "static"))
                    (slib   (string-append static "/lib")))
               (mkdir-p slib)
               (for-each (lambda (file)
                           (install-file file slib)
                           (delete-file file))
                         (find-files lib "\\.a$"))
               #t))))))
    (inputs
     `(("readline" ,readline)
       ("glib" ,glib)))
    (native-inputs
     `(("doxygen" ,doxygen)
       ("pkg-config" ,pkg-config)))
    (home-page "http://libsmf.sourceforge.net/")
    (synopsis "Standard MIDI File format library")
    (description
     "LibSMF is a C library for handling SMF (\"*.mid\") files.  It transparently handles
conversions between time and pulses, tempo map handling and more.  The only dependencies
are a C compiler and glib.  Full API documentation and examples are included.")
    (license license:bsd-2)))

(define-public lmms
  (package
    (name "lmms")
    (version "1.1.3")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://github.com/LMMS/lmms/archive/v"
                           version ".tar.gz"))
       (file-name (string-append name "-" version ".tar.gz"))
       (sha256
        (base32
         "1g76z7ha3hd53vbqaq9n1qg6s3lw8zzaw51iny6y2bz0j1xqwcsr"))))
    (build-system cmake-build-system)
    (arguments
     `(#:tests? #f ; no tests
       #:phases
       (modify-phases %standard-phases
         (add-before
          'configure 'set-ldflags
          (lambda* (#:key outputs #:allow-other-keys)
            (setenv "LDFLAGS"
                    (string-append
                     "-Wl,-rpath=\""
                     (assoc-ref outputs "out") "/lib/lmms"
                     ":"
                     (assoc-ref outputs "out") "/lib/lmms/ladspa"
                     "\"")))))))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (inputs
     `(("sdl" ,sdl)
       ("qt" ,qt-4)
       ("fltk" ,fltk)
       ("libogg" ,libogg)
       ("libsamplerate" ,libsamplerate)
       ("fluidsynth" ,fluidsynth)
       ("libvorbis" ,libvorbis)
       ("alsa-lib" ,alsa-lib)
       ("portaudio" ,portaudio)
       ("ladspa" ,ladspa)
       ("libsndfile1" ,libsndfile)
       ("libxft" ,libxft)
       ("freetype2" ,freetype)
       ("fftw3f" ,fftwf)))
    (home-page "https://lmms.io/")
    (synopsis "Music composition tool")
    (description "LMMS is a digital audio workstation.  It includes tools for sequencing
melodies and beats and for mixing and arranging songs.  LMMS includes instruments based on
audio samples and various soft sythesizers.  It can receive input from a MIDI keyboard.")
    (license license:gpl2+)))

(define-public musescore
  (package
    (name "musescore")
    (version "2.1.0")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "https://github.com/musescore/MuseScore/archive/"
                    "v" version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "0irwsq6ihfz3y3b943cwqy29g3si7gqbgxdscgw53vwv9vfvi085"))
              (modules '((guix build utils)))
              (snippet
               ;; Un-bundle OpenSSL and remove unused libraries.
               '(begin
                  (substitute* "thirdparty/kQOAuth/CMakeLists.txt"
                    (("-I \\$\\{PROJECT_SOURCE_DIR\\}/thirdparty/openssl/include ")
                     ""))
                  (substitute* "thirdparty/kQOAuth/kqoauthutils.cpp"
                    (("#include <openssl/.*") ""))
                  (for-each delete-file-recursively
                            '("thirdparty/freetype"
                              "thirdparty/openssl"
                              "thirdparty/portmidi"))
                  #t))))
    (build-system gnu-build-system)
    (arguments
     `(#:make-flags
       `(,(string-append "PREFIX=" (assoc-ref %outputs "out")))
       ;; There are tests, but no simple target to run.  The command
       ;; used to run them is:
       ;;
       ;;   make debug && sudo make installdebug && cd \
       ;;   build.debug/mtest && make && ctest
       ;;
       ;; Basically, it requires to start a whole new build process.
       ;; So we simply skip them.
       #:tests? #f
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'use-system-freetype
           (lambda _
             ;; XXX: For the time being, we grossly insert the CMake
             ;; option needed to ignore bundled freetype.  However,
             ;; there's a pending PR to have it as a regular make
             ;; option, in a future release.
             (substitute* "Makefile"
               (("cmake -DCMAKE") "cmake -DUSE_SYSTEM_FREETYPE=ON -DCMAKE"))
             #t)))))
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("freetype" ,freetype)
       ("gtk+-bin" ,gtk+ "bin")         ;for gtk-update-icon-cache
       ("jack" ,jack-1)
       ("lame" ,lame)
       ("libogg" ,libogg)
       ("libsndfile" ,libsndfile)
       ("libvorbis" ,libvorbis)
       ("portaudio" ,portaudio)
       ("pulseaudio" ,pulseaudio)
       ("qtbase" ,qtbase)
       ("qtdeclarative" ,qtdeclarative)
       ("qtscript" ,qtscript)
       ("qtsvg" ,qtsvg)
       ("qtwebkit" ,qtwebkit)
       ("qtxmlpatterns" ,qtxmlpatterns)))
    (native-inputs
     `(("cmake" ,cmake)
       ("pkg-config" ,pkg-config)
       ("qttools" ,qttools)))
    (synopsis "Music composition and notation software")
    (description "MuseScore is a music score typesetter.  Its main purpose is
the creation of high-quality engraved musical scores in a WYSIWYG environment.

It supports unlimited staves, linked parts and part extraction, tablature,
MIDI input, percussion notation, cross-staff beaming, automatic transposition,
lyrics (multiple verses), fretboard diagrams, and in general everything
commonly used in sheet music.  Style options and style sheets to change the
appearance and layout are provided.

MuseScore can also play back scores through the built-in sequencer and SoundFont
sample library.")
    (home-page "https://musescore.org")
    (license license:gpl2)))

(define-public dssi
  (package
    (name "dssi")
    (version "1.1.1")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "mirror://sourceforge/dssi/dssi/" version
                    "/dssi-" version ".tar.gz"))
              (sha256
               (base32
                "0kl1hzhb7cykzkrqcqgq1dk4xcgrcxv0jja251aq4z4l783jpj7j"))))
    (build-system gnu-build-system)
    (inputs
     `(("alsa-lib" ,alsa-lib)
       ("jack-2" ,jack-2)
       ("ladspa" ,ladspa)
       ("libsamplerate" ,libsamplerate)
       ("libsndfile" ,libsndfile)
       ("liblo" ,liblo)))
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (synopsis "Audio plugin API for soft synths and effects")
    (description "DSSI is a plugin API for software instruments with user
interfaces, permitting them to be hosted in-process by audio applications.
It is intended to be simple, GUI-toolkit-agnostic, and slightly biased
towards familiarity with MIDI.  The DSSI distribution package contains
a JACK/ALSA-sequencer reference host and some plugins as well as the
specification and header.")
    (home-page "http://dssi.sourceforge.net/")
    ;; The DSSI interface is LGPL2.1+, some tests and examples are GPL2+.
    ;; The vast majority of examples are in the public domain.
    (license (list license:lgpl2.1+ license:gpl2+))))