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Equal Divisions of Rational Intervals

Tables

  1. Octave (2/1)
  2. Quintave (3/2)
  3. Fourth (4/3)
  4. Minor Sixth (8/5)
  5. Major Sixth (5/3)
  6. Minor Seventh (9/5)
  7. Ninth (9/4)
  8. Major Tenth (5/2)
  9. Twelfth (3/1)
  10. Double Octave (4/1)
  11. Fifth Harmonic (5/1)
  12. Seventh Harmonic (7/1)
  13. Triple Octave (8/1)
  14. 11-Subminor Tritone (11/8)
  15. 11-Neutral Ninth (11/5)
  16. Subminor Tenth (7/3)
  17. Harmonic Seventh (7/4)
  18. Just Tritone (7/5)
  19. Augmented Just Tritone (10/7)
  20. 11-Subminor Sixth (11/7)
  21. Supermajor Sixth (12/7)

Equal Divisions of the Supermajor Sixth

Compiled by X. J. Scott, January 2008

Tuning step size recipe Scale Pattern
4th root of 12/7 233.282 cents LMSO Scale Recipe File Icon
0
233
233
233
467
233
700
233
933
 
1166
 
1400
 
1633
5th root of 12/7 186.626 cents LMSO Scale Recipe File Icon
0
187
187
187
373
187
560
187
747
187
933
 
1120
 
1306
 
1493
6th root of 12/7 155.522 cents LMSO Scale Recipe File Icon
0
156
156
156
311
156
467
156
622
156
778
156
933
 
1089
 
1244
 
1400
 
1555
7th root of 12/7 133.304 cents LMSO Scale Recipe File Icon
0
133
133
133
267
133
400
133
533
133
667
133
800
133
933
 
1066
 
1200
 
1333
 
1466
8th root of 12/7 116.641 cents LMSO Scale Recipe File Icon
0
117
117
117
233
117
350
117
467
117
583
117
700
117
816
117
933
 
1050
 
1166
 
1283
 
1400
 
1516
9th root of 12/7 103.681 cents LMSO Scale Recipe File Icon
0
104
104
104
207
104
311
104
415
104
518
104
622
104
726
104
829
104
933
 
1037
 
1140
 
1244
 
1348
 
1452
10th root of 12/7 93.313 cents LMSO Scale Recipe File Icon
0
93
93
93
187
93
280
93
373
93
467
93
560
93
653
93
747
93
840
93
933
 
1026
 
1120
 
1213
 
1306
 
1400
 
1493
11th root of 12/7 84.830 cents LMSO Scale Recipe File Icon
0
85
85
85
170
85
254
85
339
85
424
85
509
85
594
85
679
85
763
85
848
85
933
 
1018
 
1103
 
1188
 
1272
 
1357
 
1442
12th root of 12/7 77.761 cents LMSO Scale Recipe File Icon
0
78
78
78
156
78
233
78
311
78
389
78
467
78
544
78
622
78
700
78
778
78
855
78
933
 
1011
 
1089
 
1166
 
1244
 
1322
 
1400
 
1477
13th root of 12/7 71.779 cents LMSO Scale Recipe File Icon
0
72
72
72
144
72
215
72
287
72
359
72
431
72
502
72
574
72
646
72
718
72
790
72
861
72
933
 
1005
 
1077
 
1148
 
1220
 
1292
 
1364
 
1436
14th root of 12/7 66.652 cents LMSO Scale Recipe File Icon
0
67
67
67
133
67
200
67
267
67
333
67
400
67
467
67
533
67
600
67
667
67
733
67
800
67
866
67
933
 
1000
 
1066
 
1133
 
1200
 
1266
 
1333
 
1400
 
1466
15th root of 12/7 62.209 cents LMSO Scale Recipe File Icon
0
62
62
62
124
62
187
62
249
62
311
62
373
62
435
62
498
62
560
62
622
62
684
62
747
62
809
62
871
62
933
 
995
 
1058
 
1120
 
1182
 
1244
 
1306
 
1369
 
1431
16th root of 12/7 58.321 cents LMSO Scale Recipe File Icon
0
58
58
58
117
58
175
58
233
58
292
58
350
58
408
58
467
58
525
58
583
58
642
58
700
58
758
58
816
58
875
58
933
 
991
 
1050
 
1108
 
1166
 
1225
 
1283
 
1341
 
1400
 
1458
17th root of 12/7 54.890 cents LMSO Scale Recipe File Icon
0
55
55
55
110
55
165
55
220
55
274
55
329
55
384
55
439
55
494
55
549
55
604
55
659
55
714
55
768
55
823
55
878
55
933
 
988
 
1043
 
1098
 
1153
 
1208
 
1262
 
1317
 
1372
 
1427
18th root of 12/7 51.841 cents LMSO Scale Recipe File Icon
0
52
52
52
104
52
156
52
207
52
259
52
311
52
363
52
415
52
467
52
518
52
570
52
622
52
674
52
726
52
778
52
829
52
881
52
933
 
985
 
1037
 
1089
 
1140
 
1192
 
1244
 
1296
 
1348
 
1400
 
1452
19th root of 12/7 49.112 cents LMSO Scale Recipe File Icon
0
49
49
49
98
49
147
49
196
49
246
49
295
49
344
49
393
49
442
49
491
49
540
49
589
49
638
49
688
49
737
49
786
49
835
49
884
49
933
 
982
 
1031
 
1080
 
1130
 
1179
 
1228
 
1277
 
1326
 
1375
 
1424
20th root of 12/7 46.656 cents LMSO Scale Recipe File Icon
0
47
47
47
93
47
140
47
187
47
233
47
280
47
327
47
373
47
420
47
467
47
513
47
560
47
607
47
653
47
700
47
747
47
793
47
840
47
886
47
933
 
980
 
1026
 
1073
 
1120
 
1166
 
1213
 
1260
 
1306
 
1353
 
1400
 
1446
21st root of 12/7 44.435 cents LMSO Scale Recipe File Icon
0
44
44
44
89
44
133
44
178
44
222
44
267
44
311
44
355
44
400
44
444
44
489
44
533
44
578
44
622
44
667
44
711
44
755
44
800
44
844
44
889
44
933
 
978
 
1022
 
1066
 
1111
 
1155
 
1200
 
1244
 
1289
 
1333
 
1377
 
1422
22nd root of 12/7 42.415 cents LMSO Scale Recipe File Icon
0
42
42
42
85
42
127
42
170
42
212
42
254
42
297
42
339
42
382
42
424
42
467
42
509
42
551
42
594
42
636
42
679
42
721
42
763
42
806
42
848
42
891
42
933
 
976
 
1018
 
1060
 
1103
 
1145
 
1188
 
1230
 
1272
 
1315
 
1357
 
1400
 
1442
23rd root of 12/7 40.571 cents LMSO Scale Recipe File Icon
0
41
41
41
81
41
122
41
162
41
203
41
243
41
284
41
325
41
365
41
406
41
446
41
487
41
527
41
568
41
609
41
649
41
690
41
730
41
771
41
811
41
852
41
893
41
933
 
974
 
1014
 
1055
 
1095
 
1136
 
1177
 
1217
 
1258
 
1298
 
1339
 
1379
 
1420
24th root of 12/7 38.880 cents LMSO Scale Recipe File Icon
0
39
39
39
78
39
117
39
156
39
194
39
233
39
272
39
311
39
350
39
389
39
428
39
467
39
505
39
544
39
583
39
622
39
661
39
700
39
739
39
778
39
816
39
855
39
894
39
933
 
972
 
1011
 
1050
 
1089
 
1128
 
1166
 
1205
 
1244
 
1283
 
1322
 
1361
 
1400
 
1439
25th root of 12/7 37.325 cents LMSO Scale Recipe File Icon
0
37
37
37
75
37
112
37
149
37
187
37
224
37
261
37
299
37
336
37
373
37
411
37
448
37
485
37
523
37
560
37
597
37
635
37
672
37
709
37
747
37
784
37
821
37
858
37
896
37
933
 
970
 
1008
 
1045
 
1082
 
1120
 
1157
 
1194
 
1232
 
1269
 
1306
 
1344
 
1381
 
1418
26th root of 12/7 35.890 cents LMSO Scale Recipe File Icon
0
36
36
36
72
36
108
36
144
36
179
36
215
36
251
36
287
36
323
36
359
36
395
36
431
36
467
36
502
36
538
36
574
36
610
36
646
36
682
36
718
36
754
36
790
36
825
36
861
36
897
36
933
 
969
 
1005
 
1041
 
1077
 
1113
 
1148
 
1184
 
1220
 
1256
 
1292
 
1328
 
1364
 
1400
 
1436
27th root of 12/7 34.560 cents LMSO Scale Recipe File Icon
0
35
35
35
69
35
104
35
138
35
173
35
207
35
242
35
276
35
311
35
346
35
380
35
415
35
449
35
484
35
518
35
553
35
588
35
622
35
657
35
691
35
726
35
760
35
795
35
829
35
864
35
899
35
933
 
968
 
1002
 
1037
 
1071
 
1106
 
1140
 
1175
 
1210
 
1244
 
1279
 
1313
 
1348
 
1382
 
1417
28th root of 12/7 33.326 cents LMSO Scale Recipe File Icon
0
33
33
33
67
33
100
33
133
33
167
33
200
33
233
33
267
33
300
33
333
33
367
33
400
33
433
33
467
33
500
33
533
33
567
33
600
33
633
33
667
33
700
33
733
33
766
33
800
33
833
33
866
33
900
33
933
 
966
 
1000
 
1033
 
1066
 
1100
 
1133
 
1166
 
1200
 
1233
 
1266
 
1300
 
1333
 
1366
 
1400
 
1433
29th root of 12/7 32.177 cents LMSO Scale Recipe File Icon
0
32
32
32
64
32
97
32
129
32
161
32
193
32
225
32
257
32
290
32
322
32
354
32
386
32
418
32
450
32
483
32
515
32
547
32
579
32
611
32
644
32
676
32
708
32
740
32
772
32
804
32
837
32
869
32
901
32
933
 
965
 
997
 
1030
 
1062
 
1094
 
1126
 
1158
 
1191
 
1223
 
1255
 
1287
 
1319
 
1351
 
1384
 
1416
30th root of 12/7 31.104 cents LMSO Scale Recipe File Icon
0
31
31
31
62
31
93
31
124
31
156
31
187
31
218
31
249
31
280
31
311
31
342
31
373
31
404
31
435
31
467
31
498
31
529
31
560
31
591
31
622
31
653
31
684
31
715
31
747
31
778
31
809
31
840
31
871
31
902
31
933
 
964
 
995
 
1026
 
1058
 
1089
 
1120
 
1151
 
1182
 
1213
 
1244
 
1275
 
1306
 
1337
 
1369
 
1400
 
1431
31st root of 12/7 30.101 cents LMSO Scale Recipe File Icon
0
30
30
30
60
30
90
30
120
30
151
30
181
30
211
30
241
30
271
30
301
30
331
30
361
30
391
30
421
30
452
30
482
30
512
30
542
30
572
30
602
30
632
30
662
30
692
30
722
30
753
30
783
30
813
30
843
30
873
30
903
30
933
 
963
 
993
 
1023
 
1054
 
1084
 
1114
 
1144
 
1174
 
1204
 
1234
 
1264
 
1294
 
1324
 
1355
 
1385
 
1415

Copyright © 2008,2011 X. J. Scott, Red Barn Goat Farm (nonoctave.com). All Rights Reserved.