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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 Major Sixth

Compiled by X. J. Scott, January 2008

Tuning step size recipe Scale Pattern
4th root of 5/3 221.090 cents LMSO Scale Recipe File Icon
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221
442
221
663
221
884
 
1105
 
1327
 
1548
5th root of 5/3 176.872 cents LMSO Scale Recipe File Icon
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177
177
177
354
177
531
177
707
177
884
 
1061
 
1238
 
1415
6th root of 5/3 147.393 cents LMSO Scale Recipe File Icon
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147
147
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295
147
442
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590
147
737
147
884
 
1032
 
1179
 
1327
 
1474
7th root of 5/3 126.337 cents LMSO Scale Recipe File Icon
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126
126
126
253
126
379
126
505
126
632
126
758
126
884
 
1011
 
1137
 
1263
 
1390
 
1516
8th root of 5/3 110.545 cents LMSO Scale Recipe File Icon
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111
111
111
221
111
332
111
442
111
553
111
663
111
774
111
884
 
995
 
1105
 
1216
 
1327
 
1437
9th root of 5/3 98.262 cents LMSO Scale Recipe File Icon
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98
98
98
197
98
295
98
393
98
491
98
590
98
688
98
786
98
884
 
983
 
1081
 
1179
 
1277
 
1376
 
1474
10th root of 5/3 88.436 cents LMSO Scale Recipe File Icon
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88
88
88
177
88
265
88
354
88
442
88
531
88
619
88
707
88
796
88
884
 
973
 
1061
 
1150
 
1238
 
1327
 
1415
11th root of 5/3 80.396 cents LMSO Scale Recipe File Icon
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80
80
80
161
80
241
80
322
80
402
80
482
80
563
80
643
80
724
80
804
80
884
 
965
 
1045
 
1126
 
1206
 
1286
 
1367
 
1447
12th root of 5/3 73.697 cents LMSO Scale Recipe File Icon
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74
74
74
147
74
221
74
295
74
368
74
442
74
516
74
590
74
663
74
737
74
811
74
884
 
958
 
1032
 
1105
 
1179
 
1253
 
1327
 
1400
 
1474
13th root of 5/3 68.028 cents LMSO Scale Recipe File Icon
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68
68
68
136
68
204
68
272
68
340
68
408
68
476
68
544
68
612
68
680
68
748
68
816
68
884
 
952
 
1020
 
1088
 
1156
 
1224
 
1293
 
1361
 
1429
14th root of 5/3 63.168 cents LMSO Scale Recipe File Icon
0
63
63
63
126
63
190
63
253
63
316
63
379
63
442
63
505
63
569
63
632
63
695
63
758
63
821
63
884
 
948
 
1011
 
1074
 
1137
 
1200
 
1263
 
1327
 
1390
 
1453
15th root of 5/3 58.957 cents LMSO Scale Recipe File Icon
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59
59
59
118
59
177
59
236
59
295
59
354
59
413
59
472
59
531
59
590
59
649
59
707
59
766
59
825
59
884
 
943
 
1002
 
1061
 
1120
 
1179
 
1238
 
1297
 
1356
 
1415
16th root of 5/3 55.272 cents LMSO Scale Recipe File Icon
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55
55
55
111
55
166
55
221
55
276
55
332
55
387
55
442
55
497
55
553
55
608
55
663
55
719
55
774
55
829
55
884
 
940
 
995
 
1050
 
1105
 
1161
 
1216
 
1271
 
1327
 
1382
 
1437
17th root of 5/3 52.021 cents LMSO Scale Recipe File Icon
0
52
52
52
104
52
156
52
208
52
260
52
312
52
364
52
416
52
468
52
520
52
572
52
624
52
676
52
728
52
780
52
832
52
884
 
936
 
988
 
1040
 
1092
 
1144
 
1196
 
1249
 
1301
 
1353
 
1405
18th root of 5/3 49.131 cents LMSO Scale Recipe File Icon
0
49
49
49
98
49
147
49
197
49
246
49
295
49
344
49
393
49
442
49
491
49
540
49
590
49
639
49
688
49
737
49
786
49
835
49
884
 
933
 
983
 
1032
 
1081
 
1130
 
1179
 
1228
 
1277
 
1327
 
1376
 
1425
19th root of 5/3 46.545 cents LMSO Scale Recipe File Icon
0
47
47
47
93
47
140
47
186
47
233
47
279
47
326
47
372
47
419
47
465
47
512
47
559
47
605
47
652
47
698
47
745
47
791
47
838
47
884
 
931
 
977
 
1024
 
1071
 
1117
 
1164
 
1210
 
1257
 
1303
 
1350
 
1396
 
1443
20th root of 5/3 44.218 cents LMSO Scale Recipe File Icon
0
44
44
44
88
44
133
44
177
44
221
44
265
44
310
44
354
44
398
44
442
44
486
44
531
44
575
44
619
44
663
44
707
44
752
44
796
44
840
44
884
 
929
 
973
 
1017
 
1061
 
1105
 
1150
 
1194
 
1238
 
1282
 
1327
 
1371
 
1415
21st root of 5/3 42.112 cents LMSO Scale Recipe File Icon
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42
42
42
84
42
126
42
168
42
211
42
253
42
295
42
337
42
379
42
421
42
463
42
505
42
547
42
590
42
632
42
674
42
716
42
758
42
800
42
842
42
884
 
926
 
969
 
1011
 
1053
 
1095
 
1137
 
1179
 
1221
 
1263
 
1305
 
1348
 
1390
 
1432
22nd root of 5/3 40.198 cents LMSO Scale Recipe File Icon
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40
40
40
80
40
121
40
161
40
201
40
241
40
281
40
322
40
362
40
402
40
442
40
482
40
523
40
563
40
603
40
643
40
683
40
724
40
764
40
804
40
844
40
884
 
925
 
965
 
1005
 
1045
 
1085
 
1126
 
1166
 
1206
 
1246
 
1286
 
1327
 
1367
 
1407
23rd root of 5/3 38.450 cents LMSO Scale Recipe File Icon
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38
38
38
77
38
115
38
154
38
192
38
231
38
269
38
308
38
346
38
385
38
423
38
461
38
500
38
538
38
577
38
615
38
654
38
692
38
731
38
769
38
807
38
846
38
884
 
923
 
961
 
1000
 
1038
 
1077
 
1115
 
1154
 
1192
 
1230
 
1269
 
1307
 
1346
 
1384
 
1423
24th root of 5/3 36.848 cents LMSO Scale Recipe File Icon
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37
37
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74
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111
37
147
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184
37
221
37
258
37
295
37
332
37
368
37
405
37
442
37
479
37
516
37
553
37
590
37
626
37
663
37
700
37
737
37
774
37
811
37
848
37
884
 
921
 
958
 
995
 
1032
 
1069
 
1105
 
1142
 
1179
 
1216
 
1253
 
1290
 
1327
 
1363
 
1400
 
1437
25th root of 5/3 35.374 cents LMSO Scale Recipe File Icon
0
35
35
35
71
35
106
35
141
35
177
35
212
35
248
35
283
35
318
35
354
35
389
35
424
35
460
35
495
35
531
35
566
35
601
35
637
35
672
35
707
35
743
35
778
35
814
35
849
35
884
 
920
 
955
 
990
 
1026
 
1061
 
1097
 
1132
 
1167
 
1203
 
1238
 
1273
 
1309
 
1344
 
1380
 
1415
26th root of 5/3 34.014 cents LMSO Scale Recipe File Icon
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34
34
34
68
34
102
34
136
34
170
34
204
34
238
34
272
34
306
34
340
34
374
34
408
34
442
34
476
34
510
34
544
34
578
34
612
34
646
34
680
34
714
34
748
34
782
34
816
34
850
34
884
 
918
 
952
 
986
 
1020
 
1054
 
1088
 
1122
 
1156
 
1190
 
1224
 
1259
 
1293
 
1327
 
1361
 
1395
 
1429
27th root of 5/3 32.754 cents LMSO Scale Recipe File Icon
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33
33
33
66
33
98
33
131
33
164
33
197
33
229
33
262
33
295
33
328
33
360
33
393
33
426
33
459
33
491
33
524
33
557
33
590
33
622
33
655
33
688
33
721
33
753
33
786
33
819
33
852
33
884
 
917
 
950
 
983
 
1015
 
1048
 
1081
 
1114
 
1146
 
1179
 
1212
 
1245
 
1277
 
1310
 
1343
 
1376
 
1408
28th root of 5/3 31.584 cents LMSO Scale Recipe File Icon
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32
32
32
63
32
95
32
126
32
158
32
190
32
221
32
253
32
284
32
316
32
347
32
379
32
411
32
442
32
474
32
505
32
537
32
569
32
600
32
632
32
663
32
695
32
726
32
758
32
790
32
821
32
853
32
884
 
916
 
948
 
979
 
1011
 
1042
 
1074
 
1105
 
1137
 
1169
 
1200
 
1232
 
1263
 
1295
 
1327
 
1358
 
1390
 
1421
29th root of 5/3 30.495 cents LMSO Scale Recipe File Icon
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30
30
30
61
30
91
30
122
30
152
30
183
30
213
30
244
30
274
30
305
30
335
30
366
30
396
30
427
30
457
30
488
30
518
30
549
30
579
30
610
30
640
30
671
30
701
30
732
30
762
30
793
30
823
30
854
30
884
 
915
 
945
 
976
 
1006
 
1037
 
1067
 
1098
 
1128
 
1159
 
1189
 
1220
 
1250
 
1281
 
1311
 
1342
 
1372
 
1403
 
1433

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