Divisions of the Tetrachord

Tetrachords from the catalog in chapter 9 of John Chalmers' book Divisions of the Tetrachord.

723 scales

File Description Notes Period (¢) Limit
001_H1 Hyperenharmonic tetrachord 80/79 * 79/78 * 13/10 3 498.0 79
002_H1 Hyperenharmonic tetrachord 60/59 * 118/117 * 13/10 3 498.0 59
003_H1 Hyperenharmonic tetrachord 120/119 * 119/117 * 13/10 3 498.0 17
004_H1 Hyperenharmonic tetrachord 100/99 * 66/65 * 13/10, Wilson 3 498.0 13
005_H2 Hyperenharmonic tetrachord 72/71 * 71/70 * 35/27 3 498.0 71
006_H2 Hyperenharmonic tetrachord 108/107 * 107/105 * 35/27 3 498.0 107
007_H2 Hyperenharmonic tetrachord 54/53 * 106/105 * 35/27 3 498.0 53
008_H2 Hyperenharmonic tetrachord 64/63 * 81/80 * 35/27 3 498.0 7
009_H3 Hyperenharmonic tetrachord 68/67 * 67/66 * 22/17 3 498.0 67
010_H3 Hyperenharmonic tetrachord 51/50 * 100/99 * 22/17 3 498.0 17
011_H3 Hyperenharmonic tetrachord 102/101 * 101/99 * 22/17 3 498.0 101
012_H3 Hyperenharmonic tetrachord 85/84 * 56/55 * 22/17, Wilson 3 498.0 17
013_H4 Hyperenharmonic tetrachord 66/65 * 65/64 * 128/99 3 498.0 13
014_H4 Hyperenharmonic tetrachord 99/98 * 49/48 * 128/99 3 498.0 11
015_H4 Hyperenharmonic tetrachord 99/97 * 97/96 * 128/99 3 498.0 97
016_H5 Hyperenharmonic tetrachord 64/63 * 63/62 * 31/24 3 498.0 31
017_H5 Hyperenharmonic tetrachord 96/95 * 95/93 * 31/24 3 498.0 31
018_H5 Hyperenharmonic tetrachord 48/47 * 94/93 * 31/24 3 498.0 47
019_H6 Hyperenharmonic tetrachord 62/61 * 61/60 * 40/31 3 498.0 61
020_H6 Hyperenharmonic tetrachord 93/92 * 46/45 * 40/31 3 498.0 31
021_H6 Hyperenharmonic tetrachord 93/91 * 91/90 * 40/31 3 498.0 31
022_H7 Hyperenharmonic tetrachord 60/59 * 59/58 * 58/45 3 498.0 59
023_H7 Hyperenharmonic tetrachord 90/89 * 89/87 * 58/45 3 498.0 89
024_H7 Hyperenharmonic tetrachord 45/44 * 88/87 * 58/45 3 498.0 29
025_H7 Hyperenharmonic tetrachord 120/119 * 119/116 * 58/45 3 498.0 29
026_H8 Hyperenharmonic tetrachord 56/55 * 55/54 * 9/7, Wilson 3 498.0 11
027_H8 Hyperenharmonic tetrachord 42/41 * 82/81 * 9/7 3 498.0 41
028_H8 Hyperenharmonic tetrachord 84/83 * 83/81 * 9/7 3 498.0 83
029_H8 Hyperenharmonic tetrachord 64/63 * 49/48 * 9/7 3 498.0 7
030_H8 Hyperenharmonic tetrachord 70/69 * 46/45 * 9/7 3 498.0 23
031_H8 Hyperenharmonic tetrachord 40/39 * 91/90 * 9/7 3 498.0 13
032_H8 Hyperenharmonic tetrachord 112/111 * 37/36 * 9/7 3 498.0 37
033_H8 Hyperenharmonic tetrachord 81/80 * 2240/2187 * 9/7 3 498.0 7
034_H8 Hyperenharmonic tetrachord 9/7 * 119/117 * 52/51 3 498.0 17
035_H9 Hyperenharmonic tetrachord 54/53 * 53/52 * 104/81 3 498.0 53
036_H9 Hyperenharmonic tetrachord 81/79 * 79/78 * 104/81 3 498.0 79
037_H9 Hyperenharmonic tetrachord 81/80 * 40/39 * 104/81 3 498.0 13
038_H10 Hyperenharmonic tetrachord 52/51 * 51/50 * 50/39 3 498.0 17
039_H10 Hyperenharmonic tetrachord 39/38 * 76/75 * 50/39 3 498.0 19
040_H10 Hyperenharmonic tetrachord 78/77 * 77/75 * 50/39 3 498.0 13
041_H11 Hyperenharmonic tetrachord 50/49 * 49/48 * 32/25 3 498.0 7
042_H11 Hyperenharmonic tetrachord 75/73 * 73/72 * 32/25 3 498.0 73
043_H11 Hyperenharmonic tetrachord 75/74 * 37/36 * 32/25 3 498.0 37
044_E1 Enharmonic tetrachord 48/47 * 47/46 * 23/18, Schlesinger 3 498.0 47
045_E1 Enharmonic tetrachord 36/35 * 70/69 * 23/18, Wilson 3 498.0 23
046_E1 Enharmonic tetrachord 72/71 * 71/69 * 23/18 3 498.0 71
047_E1 Enharmonic tetrachord 30/29 * 116/115 * 23/18, Wilson 3 498.0 29
048_E1 Enharmonic tetrachord 60/59 * 118/115 * 23/18 3 498.0 59
049_E2 Enharmonic tetrachord 46/45 * 45/44 * 88/69 3 498.0 23
050_E2 Enharmonic tetrachord 69/67 * 67/66 * 88/69 3 498.0 67
051_E2 Enharmonic tetrachord 69/68 * 34/33 * 88/69 3 498.0 23
052_E3 Enharmonic tetrachord 320/313 * 313/306 * 51/40 3 498.0 313
053_E3 Enharmonic tetrachord 480/473 * 473/459 * 51/40 3 498.0 43
054_E3 Enharmonic tetrachord 240/233 * 466/459 * 51/40 3 498.0 233
055_E4 Enharmonic tetrachord 44/43 * 43/42 * 14/11 3 498.0 43
056_E4 Enharmonic tetrachord 33/32 * 64/63 * 14/11 3 498.0 11
057_E4 Enharmonic tetrachord 66/65 * 65/63 * 14/11 3 498.0 13
058_E4 Enharmonic tetrachord 88/87 * 29/28 * 14/11 3 498.0 29
059_E4 Enharmonic tetrachord 36/35 * 55/54 * 14/11 3 498.0 11
060_E4 Enharmonic tetrachord 50/49 * 77/75 * 14/11 3 498.0 11
061_E4 Enharmonic tetrachord 14/11 * 143/140 * 40/39 3 498.0 13
062_E5 Enharmonic tetrachord 42/41 * 41/40 * 80/63 3 498.0 41
063_E5 Enharmonic tetrachord 63/61 * 61/60 * 80/63 3 498.0 61
064_E5 Enharmonic tetrachord 63/62 * 31/30 * 80/63 3 498.0 31
065_E6 Enharmonic tetrachord 208/203 * 203/198 * 33/26 3 498.0 29
066_E6 Enharmonic tetrachord 312/307 * 307/297 * 33/26 3 498.0 307
067_E6 Enharmonic tetrachord 156/151 * 302/297 * 33/26 3 498.0 151
068_E6 Enharmonic tetrachord 52/51 * 34/33 * 33/26 3 498.0 17
069_E6 Enharmonic tetrachord 26/25 * 100/99 * 33/26 3 498.0 13
070_E6 Enharmonic tetrachord 78/77 * 28/27 * 33/26 3 498.0 13
071_E7 Enharmonic tetrachord 40/39 * 39/38 * 19/15, Eratosthenes 3 498.0 19
072_E7 Enharmonic tetrachord 30/29 * 58/57 * 19/15 3 498.0 29
073_E7 Enharmonic tetrachord 60/59 * 59/57 * 19/15 3 498.0 59
074_E7 Enharmonic tetrachord 28/27 * 135/133 * 19/15 3 498.0 19
075_E8 Enharmonic tetrachord 512/499 * 499/486 * 81/64, Boethius 3 498.0 499
076_E8 Enharmonic tetrachord 384/371 * 742/729 * 81/64 3 498.0 53
077_E8 Enharmonic tetrachord 768/755 * 755/729 * 81/64 3 498.0 151
078_E8 Enharmonic tetrachord 40/39 * 416/405 * 81/64 3 498.0 13
079_E8 Enharmonic tetrachord 128/125 * 250/243 * 81/64, Euler 3 498.0 5
080_E8 Enharmonic tetrachord 64/63 * 28/27 * 81/64, Wilson 3 498.0 7
081_E8 Enharmonic tetrachord 282429536481/274877906944 * 70368744177664/68630377364883 * 81/64 3 498.0 3
082_E8 Enharmonic tetrachord 36/35 * 2240/2187 * 81/64 3 498.0 7
083_E9 Enharmonic tetrachord 38/37 * 37/36 * 24/19 3 498.0 37
084_E9 Enharmonic tetrachord 57/55 * 55/54 * 24/19 3 498.0 19
085_E9 Enharmonic tetrachord 57/56 * 28/27 * 24/19, Wilson 3 498.0 19
086_E9 Enharmonic tetrachord 76/75 * 25/24 * 24/19 3 498.0 19
087_E9 Enharmonic tetrachord 40/39 * 247/240 * 24/19 3 498.0 19
088_E10 Enharmonic tetrachord 36/35 * 35/34 * 34/27 3 498.0 17
089_E10 Enharmonic tetrachord 27/26 * 52/51 * 34/27 3 498.0 17
090_E10 Enharmonic tetrachord 54/53 * 53/51 * 34/27 3 498.0 53
091_E10 Enharmonic tetrachord 24/23 * 69/68 * 34/27 3 498.0 23
092_E11 Enharmonic tetrachord 240/233 * 233/226 * 113/90 3 498.0 233
093_E11 Enharmonic tetrachord 180/173 * 346/339 * 113/90 3 498.0 173
094_E11 Enharmonic tetrachord 360/353 * 353/339 * 113/90 3 498.0 353
095_E11 Enharmonic tetrachord 30/29 * 116/113 * 113/90 3 498.0 113
096_E11 Enharmonic tetrachord 40/39 * 117/113 * 113/90 3 498.0 113
097_E11 Enharmonic tetrachord 60/59 * 118/113 * 113/90 3 498.0 113
098_E12 Enharmonic tetrachord 34/33 * 33/32 * 64/51 3 498.0 17
099_E12 Enharmonic tetrachord 51/50 * 25/24 * 64/51 3 498.0 17
100_E12 Enharmonic tetrachord 49/48 * 51/49 * 64/51 3 498.0 17
101_E12 Enharmonic tetrachord 68/65 * 65/64 * 64/51 3 498.0 17
102_E12 Enharmonic tetrachord 68/67 * 67/64 * 64/51 3 498.0 67
103_E13 Enharmonic tetrachord 32/31 * 31/30 * 5/4, Didymos 3 498.0 31
104_E13 Enharmonic tetrachord 46/45 * 24/23 * 5/4, Ptolemy 3 498.0 23
105_E13 Enharmonic tetrachord 48/47 * 47/45 * 5/4 3 498.0 47
106_E13 Enharmonic tetrachord 28/27 * 36/35 * 5/4, Archytas 3 498.0 7
107_E13 Enharmonic tetrachord 56/55 * 22/21 * 5/4, Ptolemy? 3 498.0 11
108_E13 Enharmonic tetrachord 40/39 * 26/25 * 5/4, Avicenna 3 498.0 13
109_E13 Enharmonic tetrachord 25/24 * 128/125 * 5/4, Salinas 3 498.0 5
110_E13 Enharmonic tetrachord 21/20 * 64/63 * 5/4, Pachymeres 3 498.0 7
111_E13 Enharmonic tetrachord 256/243 * 81/80 * 5/4, Fox-Strangways? 3 498.0 5
112_E13 Enharmonic tetrachord 76/75 * 20/19 * 5/4 3 498.0 19
113_E13 Enharmonic tetrachord 96/95 * 19/18 * 5/4, Wilson 3 498.0 19
114_E13 Enharmonic tetrachord 136/135 * 18/17 * 5/4, Hofmann 3 498.0 17
115_E13 Enharmonic tetrachord 256/255 * 17/16 * 5/4, Hofmann 3 498.0 17
116_E13 Enharmonic tetrachord 68/65 * 5/4 * 52/51 3 498.0 17
117_E14 Enharmonic tetrachord 4374/4235 * 4235/4096 * 8192/6561 3 498.0 11
118_E14 Enharmonic tetrachord 6561/6283 * 6283/6144 * 8192/6561 3 498.0 103
119_E14 Enharmonic tetrachord 6561/6422 * 3211/3072 * 8192/6561 3 498.0 19
120_E14 Enharmonic tetrachord 282429536481/274877906944 * 134217728/129140163 * 8192/6561 3 498.0 3
121_E15 Enharmonic tetrachord 30/29 * 29/28 * 56/45, Ptolemy 3 498.0 29
122_E15 Enharmonic tetrachord 45/43 * 43/42 * 56/45 3 498.0 43
123_E15 Enharmonic tetrachord 45/44 * 22/21 * 56/45 3 498.0 11
124_E15 Enharmonic tetrachord 25/24 * 36/35 * 56/45 3 498.0 7
125_E15 Enharmonic tetrachord 80/77 * 33/32 * 56/45 3 498.0 11
126_E15 Enharmonic tetrachord 60/59 * 59/56 * 56/45 3 498.0 59
127_E15 Enharmonic tetrachord 40/39 * 117/112 * 56/45 3 498.0 13
128_E15 Enharmonic tetrachord 26/25 * 375/364 * 56/45 3 498.0 13
129_E16 Enharmonic tetrachord 88/85 * 85/82 * 41/33 3 498.0 41
130_E16 Enharmonic tetrachord 42/41 * 22/21 * 41/33 3 498.0 41
131_E16 Enharmonic tetrachord 44/43 * 43/41 * 41/33 3 498.0 43
132_C1 Chromatic tetrachord 29/28 * 28/27 * 36/29 3 498.0 29
133_C1 Chromatic tetrachord 87/85 * 85/81 * 36/29 3 498.0 29
134_C1 Chromatic tetrachord 87/83 * 83/81 * 36/29 3 498.0 83
135_C2 Chromatic tetrachord 28/27 * 27/26 * 26/21, Schlesinger 3 498.0 13
136_C2 Chromatic tetrachord 21/20 * 40/39 * 26/21 3 498.0 13
137_C2 Chromatic tetrachord 42/41 * 41/39 * 26/21 3 498.0 41
138_C2 Chromatic tetrachord 24/23 * 161/156 * 26/21 3 498.0 23
139_C3 Chromatic tetrachord 136/131 * 131/126 * 21/17 3 498.0 131
140_C3 Chromatic tetrachord 102/97 * 194/189 * 21/17 3 498.0 97
141_C3 Chromatic tetrachord 204/199 * 199/189 * 21/17 3 498.0 199
142_C3 Chromatic tetrachord 64/63 * 17/16 * 21/17 3 498.0 17
143_C3 Chromatic tetrachord 34/33 * 22/21 * 21/17 3 498.0 17
144_C3 Chromatic tetrachord 40/39 * 221/210 * 21/17 3 498.0 17
145_C3 Chromatic tetrachord 24/23 * 391/378 * 21/17 3 498.0 23
146_C3 Chromatic tetrachord 28/27 * 51/49 * 21/17 3 498.0 17
147_C4 Chromatic tetrachord 27/26 * 26/25 * 100/81 3 498.0 13
148_C4 Chromatic tetrachord 81/77 * 77/75 * 100/81 3 498.0 11
149_C4 Chromatic tetrachord 81/79 * 79/75 * 100/81 3 498.0 79
150_C4 Chromatic tetrachord 81/80 * 16/15 * 100/81 3 498.0 5
151_C4 Chromatic tetrachord 51/50 * 18/17 * 100/81 3 498.0 17
152_C4 Chromatic tetrachord 36/35 * 21/20 * 100/81 3 498.0 7
153_C4 Chromatic tetrachord 40/39 * 1053/1000 * 100/81 3 498.0 13
154_C4 Chromatic tetrachord 135/128 * 128/125 * 100/81, Daniélou 3 498.0 5
155_C4 Chromatic tetrachord 24/23 * 207/200 * 100/81 3 498.0 23
156_C5 Chromatic tetrachord 80/77 * 77/74 * 37/30, Ptolemy 3 498.0 37
157_C5 Chromatic tetrachord 20/19 * 38/37 * 37/30 3 498.0 37
158_C5 Chromatic tetrachord 40/39 * 39/37 * 37/30 3 498.0 37
159_C5 Chromatic tetrachord 30/29 * 116/111 * 37/30 3 498.0 37
160_C5 Chromatic tetrachord 60/59 * 118/111 * 37/30 3 498.0 59
161_C6 Chromatic tetrachord 26/25 * 25/24 * 16/13 3 498.0 13
162_C6 Chromatic tetrachord 39/37 * 37/36 * 16/13 3 498.0 37
163_C6 Chromatic tetrachord 39/38 * 19/18 * 16/13 3 498.0 19
164_C6 Chromatic tetrachord 65/64 * 16/15 * 16/13 3 498.0 13
165_C6 Chromatic tetrachord 52/51 * 17/16 * 16/13 3 498.0 17
166_C6 Chromatic tetrachord 40/39 * 169/160 * 16/13 3 498.0 13
167_C6 Chromatic tetrachord 28/27 * 117/112 * 16/13 3 498.0 13
168_C6 Chromatic tetrachord 169/168 * 14/13 * 16/13 3 498.0 13
169_C6 Chromatic tetrachord 22/21 * 91/88 * 16/13 3 498.0 13
170_C7 Chromatic tetrachord 176/169 * 169/162 * 27/22 3 498.0 13
171_C7 Chromatic tetrachord 132/125 * 250/243 * 27/22 3 498.0 11
172_C7 Chromatic tetrachord 264/257 * 257/243 * 27/22 3 498.0 257
173_C7 Chromatic tetrachord 28/27 * 22/21 * 27/22 3 498.0 11
174_C7 Chromatic tetrachord 55/54 * 16/15 * 27/22 3 498.0 11
175_C7 Chromatic tetrachord 40/39 * 143/135 * 27/22 3 498.0 13
176_C8 Chromatic tetrachord 24/23 * 23/22 * 11/9, Winnington-Ingram 3 498.0 23
177_C8 Chromatic tetrachord 18/17 * 34/33 * 11/9 3 498.0 17
178_C8 Chromatic tetrachord 36/35 * 35/33 * 11/9 3 498.0 11
179_C8 Chromatic tetrachord 45/44 * 16/15 * 11/9 3 498.0 11
180_C8 Chromatic tetrachord 56/55 * 15/14 * 11/9 3 498.0 11
181_C8 Chromatic tetrachord 78/77 * 14/13 * 11/9 3 498.0 13
182_C8 Chromatic tetrachord 20/19 * 57/55 * 11/9 3 498.0 19
183_C8 Chromatic tetrachord 30/29 * 58/55 * 11/9 3 498.0 29
184_C8 Chromatic tetrachord 28/27 * 81/77 * 11/9 3 498.0 11
185_C8 Chromatic tetrachord 40/39 * 117/110 * 11/9 3 498.0 13
186_C9 Chromatic tetrachord 256/245 * 245/234 * 39/32 3 498.0 13
187_C9 Chromatic tetrachord 384/373 * 373/351 * 39/32 3 498.0 373
188_C9 Chromatic tetrachord 192/181 * 362/351 * 39/32 3 498.0 181
189_C9 Chromatic tetrachord 64/63 * 14/13 * 39/32 3 498.0 13
190_C10 Chromatic tetrachord 23/22 * 22/21 * 28/23, Wilson 3 498.0 23
191_C10 Chromatic tetrachord 69/65 * 65/63 * 28/23 3 498.0 23
192_C10 Chromatic tetrachord 69/67 * 67/63 * 28/23 3 498.0 67
193_C10 Chromatic tetrachord 46/45 * 15/14 * 28/23 3 498.0 23
194_C11 Chromatic tetrachord 112/107 * 107/102 * 17/14 3 498.0 107
195_C11 Chromatic tetrachord 84/79 * 158/153 * 17/14 3 498.0 79
196_C11 Chromatic tetrachord 168/163 * 163/153 * 17/14 3 498.0 163
197_C11 Chromatic tetrachord 52/51 * 14/13 * 17/14 3 498.0 17
198_C11 Chromatic tetrachord 28/27 * 18/17 * 17/14 3 498.0 17
199_C11 Chromatic tetrachord 35/34 * 16/15 * 17/14 3 498.0 17
200_C11 Chromatic tetrachord 40/39 * 91/85 * 17/14 3 498.0 17
201_C11 Chromatic tetrachord 17/14 * 56/55 * 55/51 3 498.0 17
202_C11 Chromatic tetrachord 17/14 * 56/53 * 53/51 3 498.0 53
203_C12 Chromatic tetrachord 22/21 * 21/20 * 40/33 3 498.0 11
204_C12 Chromatic tetrachord 33/31 * 31/30 * 40/33 3 498.0 31
205_C12 Chromatic tetrachord 33/32 * 16/15 * 40/33 3 498.0 11
206_C12 Chromatic tetrachord 55/54 * 27/25 * 40/33 3 498.0 11
207_C12 Chromatic tetrachord 66/65 * 13/12 * 40/33 3 498.0 13
208_C12 Chromatic tetrachord 18/17 * 187/180 * 40/33 3 498.0 17
209_C13 Chromatic tetrachord 64/61 * 61/58 * 29/24 3 498.0 61
210_C13 Chromatic tetrachord 16/15 * 30/29 * 29/24, Schlesinger 3 498.0 29
211_C13 Chromatic tetrachord 32/31 * 31/29 * 29/24, Schlesinger 3 498.0 31
212_C14 Chromatic tetrachord 20/19 * 19/18 * 6/5, Eratosthenes 3 498.0 19
213_C14 Chromatic tetrachord 28/27 * 15/14 * 6/5, Ptolemy 3 498.0 7
214_C14 Chromatic tetrachord 30/29 * 29/27 * 6/5 3 498.0 29
215_C14 Chromatic tetrachord 16/15 * 25/24 * 6/5, Didymos 3 498.0 5
216_C14 Chromatic tetrachord 40/39 * 13/12 * 6/5, Barbour 3 498.0 13
217_C14 Chromatic tetrachord 55/54 * 12/11 * 6/5, Barbour 3 498.0 11
218_C14 Chromatic tetrachord 65/63 * 14/13 * 6/5 3 498.0 13
219_C14 Chromatic tetrachord 22/21 * 35/33 * 6/5 3 498.0 11
220_C14 Chromatic tetrachord 21/20 * 200/189 * 6/5, Perrett 3 498.0 7
221_C14 Chromatic tetrachord 256/243 * 6/5 * 135/128, Xenakis 3 498.0 5
222_C14 Chromatic tetrachord 60/59 * 59/54 * 6/5 3 498.0 59
223_C14 Chromatic tetrachord 80/77 * 77/72 * 6/5 3 498.0 11
224_C14 Chromatic tetrachord 24/23 * 115/108 * 6/5 3 498.0 23
225_C14 Chromatic tetrachord 88/81 * 45/44 * 6/5 3 498.0 11
226_C14 Chromatic tetrachord 46/45 * 6/5 * 25/23 3 498.0 23
227_C14 Chromatic tetrachord 52/51 * 85/78 * 6/5, Wilson 3 498.0 17
228_C14 Chromatic tetrachord 100/99 * 11/10 * 6/5, Hofmann 3 498.0 11
229_C14 Chromatic tetrachord 34/33 * 6/5 * 55/51 3 498.0 17
230_C14 Chromatic tetrachord 6/5 * 35/32 * 64/63 3 498.0 7
231_C14 Chromatic tetrachord 6/5 * 2240/2187 * 243/224 3 498.0 7
232_C15 Chromatic tetrachord 56/53 * 53/50 * 25/21 3 498.0 53
233_C15 Chromatic tetrachord 14/13 * 26/25 * 25/21 3 498.0 13
234_C15 Chromatic tetrachord 28/27 * 27/25 * 25/21 3 498.0 7
235_C15 Chromatic tetrachord 21/20 * 16/15 * 25/21, Perrett 3 498.0 7
236_C15 Chromatic tetrachord 40/39 * 273/250 * 25/21 3 498.0 13
237_C16 Chromatic tetrachord 128/121 * 121/114 * 19/16 3 498.0 19
238_C16 Chromatic tetrachord 96/89 * 178/171 * 19/16 3 498.0 89
239_C16 Chromatic tetrachord 192/185 * 185/171 * 19/16 3 498.0 37
240_C16 Chromatic tetrachord 20/19 * 19/16 * 16/15, Kornerup 3 498.0 19
241_C16 Chromatic tetrachord 256/243 * 81/76 * 19/16, Boethius 3 498.0 19
242_C16 Chromatic tetrachord 96/95 * 10/9 * 19/16, Wilson 3 498.0 19
243_C16 Chromatic tetrachord 64/63 * 21/19 * 19/16 3 498.0 19
244_C16 Chromatic tetrachord 40/39 * 104/95 * 19/16 3 498.0 19
245_C17 Chromatic tetrachord 18/17 * 17/16 * 32/27, Aristides Quint. 3 498.0 17
246_C17 Chromatic tetrachord 27/25 * 25/24 * 32/27 3 498.0 5
247_C17 Chromatic tetrachord 27/26 * 13/12 * 32/27, Barbour? 3 498.0 13
248_C17 Chromatic tetrachord 28/27 * 243/224 * 32/27, Archytas 3 498.0 7
249_C17 Chromatic tetrachord 256/243 * 2187/2048 * 32/27, Gaudentius 3 498.0 3
250_C17 Chromatic tetrachord 81/80 * 10/9 * 32/27, Barbour? 3 498.0 5
251_C17 Chromatic tetrachord 33/32 * 12/11 * 32/27, Barbour? 3 498.0 11
252_C17 Chromatic tetrachord 45/44 * 11/10 * 32/27, Barbour? 3 498.0 11
253_C17 Chromatic tetrachord 21/20 * 15/14 * 32/27, Perrett 3 498.0 7
254_C17 Chromatic tetrachord 135/128 * 16/15 * 32/27 3 498.0 5
255_C17 Chromatic tetrachord 36/35 * 35/32 * 32/27, Wilson 3 498.0 7
256_C17 Chromatic tetrachord 49/48 * 54/49 * 32/27, Wilson 3 498.0 7
257_C17 Chromatic tetrachord 243/230 * 115/108 * 32/27, Ps.-Philolaus? 3 498.0 23
258_C17 Chromatic tetrachord 243/229 * 229/216 * 32/27 3 498.0 229
259_C17 Chromatic tetrachord 20/19 * 171/160 * 32/27 3 498.0 19
260_C17 Chromatic tetrachord 23/22 * 99/92 * 32/27 3 498.0 23
261_C17 Chromatic tetrachord 24/23 * 69/64 * 32/27 3 498.0 23
262_C17 Chromatic tetrachord 40/39 * 351/320 * 32/27 3 498.0 13
263_C17 Chromatic tetrachord 14/13 * 117/112 * 32/27 3 498.0 13
264_C18 Chromatic tetrachord 304/287 * 287/270 * 45/38 3 498.0 41
265_C18 Chromatic tetrachord 456/439 * 439/405 * 45/38 3 498.0 439
266_C18 Chromatic tetrachord 228/211 * 422/405 * 45/38 3 498.0 211
267_C18 Chromatic tetrachord 19/18 * 16/15 * 45/38 3 498.0 19
268_C18 Chromatic tetrachord 76/75 * 10/9 * 45/38 3 498.0 19
269_C18 Chromatic tetrachord 38/35 * 28/27 * 45/38 3 498.0 19
270_C19 Chromatic tetrachord 88/83 * 83/78 * 13/11 3 498.0 83
271_C19 Chromatic tetrachord 66/61 * 122/117 * 13/11 3 498.0 61
272_C19 Chromatic tetrachord 132/127 * 127/117 * 13/11 3 498.0 127
273_C19 Chromatic tetrachord 14/13 * 22/21 * 13/11 3 498.0 13
274_C19 Chromatic tetrachord 40/39 * 11/10 * 13/11 3 498.0 13
275_C19 Chromatic tetrachord 66/65 * 10/9 * 13/11, Wilson 3 498.0 13
276_C19 Chromatic tetrachord 27/26 * 88/81 * 13/11 3 498.0 13
277_C19 Chromatic tetrachord 28/27 * 99/91 * 13/11 3 498.0 13
278_C20 Chromatic tetrachord 224/211 * 211/198 * 33/28 3 498.0 211
279_C20 Chromatic tetrachord 336/323 * 323/297 * 33/28 3 498.0 19
280_C20 Chromatic tetrachord 168/155 * 310/297 * 33/28 3 498.0 31
281_C20 Chromatic tetrachord 56/55 * 10/9 * 33/28 3 498.0 11
282_C20 Chromatic tetrachord 16/15 * 35/33 * 33/28 3 498.0 11
283_C20 Chromatic tetrachord 34/33 * 33/28 * 56/51 3 498.0 17
284_C21 Chromatic tetrachord 17/16 * 16/15 * 20/17 3 498.0 17
285_C21 Chromatic tetrachord 51/47 * 47/45 * 20/17 3 498.0 47
286_C21 Chromatic tetrachord 51/49 * 49/45 * 20/17 3 498.0 17
287_C21 Chromatic tetrachord 34/33 * 11/10 * 20/17 3 498.0 17
288_C21 Chromatic tetrachord 51/50 * 10/9 * 20/17 3 498.0 17
289_C21 Chromatic tetrachord 40/39 * 221/200 * 20/17 3 498.0 17
290_C21 Chromatic tetrachord 28/27 * 153/140 * 20/17 3 498.0 17
291_C21 Chromatic tetrachord 21/20 * 20/17 * 68/63 3 498.0 17
292_C21 Chromatic tetrachord 68/65 * 13/12 * 20/17 3 498.0 17
293_C21 Chromatic tetrachord 34/31 * 31/30 * 20/17 3 498.0 31
294_C21 Chromatic tetrachord 68/61 * 61/60 * 20/17 3 498.0 61
295_C21 Chromatic tetrachord 68/67 * 67/57 * 19/17 3 498.0 67
296_C21 Chromatic tetrachord 68/67 * 67/60 * 20/17 3 498.0 67
297_C22 Chromatic tetrachord 184/173 * 173/162 * 27/23 3 498.0 173
298_C22 Chromatic tetrachord 276/265 * 265/243 * 27/23 3 498.0 53
299_C22 Chromatic tetrachord 138/127 * 254/243 * 27/23 3 498.0 127
300_C22 Chromatic tetrachord 28/27 * 23/21 * 27/23 3 498.0 23
301_C22 Chromatic tetrachord 23/22 * 88/81 * 27/23 3 498.0 23
302_C22 Chromatic tetrachord 46/45 * 10/9 * 27/23 3 498.0 23
303_C23 Chromatic tetrachord 512/481 * 481/450 * 75/64 3 498.0 37
304_C23 Chromatic tetrachord 768/737 * 737/675 * 75/64 3 498.0 67
305_C23 Chromatic tetrachord 384/353 * 706/675 * 75/64 3 498.0 353
306_C23 Chromatic tetrachord 16/15 * 75/64 * 16/15, Helmholtz 3 498.0 5
307_C24 Chromatic tetrachord 16/15 * 15/14 * 7/6, Al-Farabi 3 498.0 7
308_C24 Chromatic tetrachord 22/21 * 12/11 * 7/6, Ptolemy 3 498.0 11
309_C24 Chromatic tetrachord 24/23 * 23/21 * 7/6 3 498.0 23
310_C24 Chromatic tetrachord 20/19 * 38/35 * 7/6, Ptolemy 3 498.0 19
311_C24 Chromatic tetrachord 10/9 * 36/35 * 7/6, Avicenna 3 498.0 7
312_C24 Chromatic tetrachord 64/63 * 9/8 * 7/6, Barbour 3 498.0 7
313_C24 Chromatic tetrachord 92/91 * 26/23 * 7/6 3 498.0 23
314_C24 Chromatic tetrachord 256/243 * 243/224 * 7/6, Hipkins 3 498.0 7
315_C24 Chromatic tetrachord 40/39 * 39/35 * 7/6 3 498.0 13
316_C24 Chromatic tetrachord 18/17 * 7/6 * 68/63 3 498.0 17
317_C24 Chromatic tetrachord 50/49 * 7/6 * 28/25 3 498.0 7
318_C24 Chromatic tetrachord 14/13 * 7/6 * 52/49 3 498.0 13
319_C24 Chromatic tetrachord 46/45 * 180/161 * 7/6 3 498.0 23
320_C24 Chromatic tetrachord 28/27 * 54/49 * 7/6 3 498.0 7
321_C24 Chromatic tetrachord 120/113 * 113/105 * 7/6 3 498.0 113
322_C24 Chromatic tetrachord 60/59 * 118/105 * 7/6 3 498.0 59
323_C24 Chromatic tetrachord 30/29 * 116/105 * 7/6 3 498.0 29
324_C24 Chromatic tetrachord 88/81 * 81/77 * 7/6 3 498.0 11
325_C24 Chromatic tetrachord 120/119 * 17/15 * 7/6 3 498.0 17
326_C24 Chromatic tetrachord 27/25 * 7/6 * 200/189 3 498.0 7
327_C24 Chromatic tetrachord 26/25 * 7/6 * 100/91 3 498.0 13
328_C24 Chromatic tetrachord 7/6 * 1024/945 * 135/128 3 498.0 7
329_C25 Chromatic tetrachord 78/73 * 73/68 * 136/117 3 498.0 73
330_C25 Chromatic tetrachord 117/112 * 56/51 * 136/117 3 498.0 17
331_C25 Chromatic tetrachord 117/107 * 107/102 * 136/117 3 498.0 107
332_C25 Chromatic tetrachord 52/51 * 9/8 * 136/117 3 498.0 17
333_C26 Chromatic tetrachord 31/29 * 29/27 * 36/31 3 498.0 31
334_C26 Chromatic tetrachord 93/89 * 89/81 * 36/31 3 498.0 89
335_C26 Chromatic tetrachord 93/85 * 85/81 * 36/31 3 498.0 31
336_C27 Chromatic tetrachord 46/43 * 43/40 * 80/69 3 498.0 43
337_C27 Chromatic tetrachord 23/21 * 21/20 * 80/69 3 498.0 23
338_C27 Chromatic tetrachord 23/22 * 11/10 * 80/69 3 498.0 23
339_C27 Chromatic tetrachord 46/45 * 9/8 * 80/69 3 498.0 23
340_C28 Chromatic tetrachord 76/71 * 71/66 * 22/19 3 498.0 71
341_C28 Chromatic tetrachord 57/52 * 104/99 * 22/19 3 498.0 19
342_C28 Chromatic tetrachord 114/109 * 109/99 * 22/19 3 498.0 109
343_C28 Chromatic tetrachord 19/18 * 12/11 * 22/19, Schlesinger 3 498.0 19
344_C28 Chromatic tetrachord 34/33 * 19/17 * 22/19 3 498.0 19
345_C28 Chromatic tetrachord 40/39 * 247/220 * 22/19 3 498.0 19
346_C29 Chromatic tetrachord 15/14 * 14/13 * 52/45 3 498.0 13
347_C29 Chromatic tetrachord 45/41 * 41/39 * 52/45 3 498.0 41
348_C29 Chromatic tetrachord 45/43 * 43/39 * 52/45 3 498.0 43
349_C29 Chromatic tetrachord 24/23 * 115/104 * 52/45 3 498.0 23
350_C29 Chromatic tetrachord 40/39 * 9/8 * 52/45 3 498.0 13
351_C29 Chromatic tetrachord 18/17 * 85/78 * 52/45 3 498.0 17
352_C29 Chromatic tetrachord 45/44 * 44/39 * 52/45 3 498.0 13
353_C29 Chromatic tetrachord 65/63 * 189/169 * 52/45 3 498.0 13
354_C29 Chromatic tetrachord 55/52 * 12/11 * 52/45 3 498.0 13
355_C29 Chromatic tetrachord 60/59 * 59/52 * 52/45 3 498.0 59
356_C29 Chromatic tetrachord 20/19 * 52/45 * 57/52 3 498.0 19
357_C29 Chromatic tetrachord 27/26 * 10/9 * 52/45 3 498.0 13
358_C29 Chromatic tetrachord 11/10 * 150/143 * 52/45 3 498.0 13
359_D1 Diatonic tetrachord 104/97 * 97/90 * 15/13 3 498.0 97
360_D1 Diatonic tetrachord 78/71 * 142/135 * 15/13 3 498.0 71
361_D1 Diatonic tetrachord 156/149 * 149/135 * 15/13 3 498.0 149
362_D1 Diatonic tetrachord 16/15 * 15/13 * 13/12, Schlesinger 3 498.0 13
363_D1 Diatonic tetrachord 26/25 * 10/9 * 15/13 3 498.0 13
364_D1 Diatonic tetrachord 256/243 * 351/320 * 15/13 3 498.0 13
365_D1 Diatonic tetrachord 20/19 * 247/225 * 15/13 3 498.0 19
366_D1 Diatonic tetrachord 11/10 * 15/13 * 104/99 3 498.0 13
367_D1 Diatonic tetrachord 12/11 * 15/13 * 143/135 3 498.0 13
368_D1 Diatonic tetrachord 46/45 * 26/23 * 15/13 3 498.0 23
369_D1 Diatonic tetrachord 40/39 * 169/150 * 15/13 3 498.0 13
370_D1 Diatonic tetrachord 28/27 * 39/35 * 15/13 3 498.0 13
371_D1 Diatonic tetrachord 91/90 * 8/7 * 15/13 3 498.0 13
372_D2 Diatonic tetrachord 44/41 * 41/38 * 38/33 3 498.0 41
373_D2 Diatonic tetrachord 11/10 * 20/19 * 38/33 3 498.0 19
374_D2 Diatonic tetrachord 22/21 * 21/19 * 38/33 3 498.0 19
375_D3 Diatonic tetrachord 160/149 * 149/138 * 23/20 3 498.0 149
376_D3 Diatonic tetrachord 120/109 * 218/207 * 23/20 3 498.0 109
377_D3 Diatonic tetrachord 240/229 * 229/207 * 23/20 3 498.0 229
378_D3 Diatonic tetrachord 8/7 * 70/69 * 23/20 3 498.0 23
379_D3 Diatonic tetrachord 40/39 * 26/23 * 23/20 3 498.0 23
380_D3 Diatonic tetrachord 24/23 * 23/20 * 10/9, Schlesinger 3 498.0 23
381_D3 Diatonic tetrachord 28/27 * 180/161 * 23/20 3 498.0 23
382_D4 Diatonic tetrachord 72/67 * 67/62 * 31/27 3 498.0 67
383_D4 Diatonic tetrachord 108/103 * 103/93 * 31/27 3 498.0 103
384_D4 Diatonic tetrachord 54/49 * 98/93 * 31/27 3 498.0 31
385_D4 Diatonic tetrachord 32/31 * 9/8 * 31/27 3 498.0 31
386_D5 Diatonic tetrachord 272/253 * 253/234 * 39/34 3 498.0 23
387_D5 Diatonic tetrachord 408/389 * 389/351 * 39/34 3 498.0 389
388_D5 Diatonic tetrachord 204/185 * 370/351 * 39/34 3 498.0 37
389_D5 Diatonic tetrachord 40/39 * 39/34 * 17/15 3 498.0 17
390_D6 Diatonic tetrachord 14/13 * 13/12 * 8/7, Avicenna 3 498.0 13
391_D6 Diatonic tetrachord 19/18 * 21/19 * 8/7, Safiyu-d-Din 3 498.0 19
392_D6 Diatonic tetrachord 21/20 * 10/9 * 8/7, Ptolemy 3 498.0 7
393_D6 Diatonic tetrachord 28/27 * 8/7 * 9/8, Archytas 3 498.0 7
394_D6 Diatonic tetrachord 49/48 * 8/7 * 8/7, Al-Farabi 3 498.0 7
395_D6 Diatonic tetrachord 35/33 * 11/10 * 8/7, Avicenna 3 498.0 11
396_D6 Diatonic tetrachord 77/72 * 12/11 * 8/7, Avicenna 3 498.0 11
397_D6 Diatonic tetrachord 16/15 * 35/32 * 8/7, Vogel 3 498.0 7
398_D6 Diatonic tetrachord 35/34 * 17/15 * 8/7 3 498.0 17
399_D6 Diatonic tetrachord 25/24 * 8/7 * 28/25 3 498.0 7
400_D6 Diatonic tetrachord 15/14 * 8/7 * 49/45 3 498.0 7
401_D6 Diatonic tetrachord 40/39 * 91/80 * 8/7 3 498.0 13
402_D6 Diatonic tetrachord 46/45 * 105/92 * 8/7 3 498.0 23
403_D6 Diatonic tetrachord 18/17 * 119/108 * 8/7 3 498.0 17
404_D6 Diatonic tetrachord 17/16 * 8/7 * 56/51 3 498.0 17
405_D6 Diatonic tetrachord 34/33 * 77/68 * 8/7 3 498.0 17
406_D6 Diatonic tetrachord 256/243 * 567/512 * 8/7 3 498.0 7
407_D7 Diatonic tetrachord 150/139 * 139/128 * 256/225 3 498.0 139
408_D7 Diatonic tetrachord 225/214 * 107/96 * 256/225 3 498.0 107
409_D7 Diatonic tetrachord 225/203 * 203/192 * 256/225 3 498.0 29
410_D7 Diatonic tetrachord 25/24 * 9/8 * 256/225 3 498.0 5
411_D8 Diatonic tetrachord 176/163 * 163/150 * 25/22 3 498.0 163
412_D8 Diatonic tetrachord 132/119 * 238/225 * 25/22 3 498.0 17
413_D8 Diatonic tetrachord 264/251 * 251/225 * 25/22 3 498.0 251
414_D8 Diatonic tetrachord 16/15 * 11/10 * 25/22 3 498.0 11
415_D8 Diatonic tetrachord 88/81 * 27/25 * 25/22 3 498.0 11
416_D8 Diatonic tetrachord 22/21 * 25/22 * 28/25 3 498.0 11
417_D8 Diatonic tetrachord 28/27 * 198/175 * 25/22 3 498.0 11
418_D8 Diatonic tetrachord 26/25 * 44/39 * 25/22 3 498.0 13
419_D9 Diatonic tetrachord 27/25 * 25/23 * 92/81 3 498.0 23
420_D9 Diatonic tetrachord 81/77 * 77/69 * 92/81 3 498.0 23
421_D9 Diatonic tetrachord 81/73 * 73/69 * 92/81 3 498.0 73
422_D9 Diatonic tetrachord 24/23 * 9/8 * 92/81 3 498.0 23
423_D9 Diatonic tetrachord 27/26 * 26/23 * 92/81 3 498.0 23
424_D10 Diatonic tetrachord 67/62 * 62/57 * 76/67 3 498.0 67
425_D10 Diatonic tetrachord 201/181 * 181/171 * 76/67 3 498.0 181
426_D10 Diatonic tetrachord 201/191 * 191/171 * 76/67 3 498.0 191
427_D10 Diatonic tetrachord 256/243 * 76/67 * 5427/4864, Euler 3 498.0 67
428_D11 Diatonic tetrachord 40/37 * 37/34 * 17/15 3 498.0 37
429_D11 Diatonic tetrachord 10/9 * 18/17 * 17/15, Kornerup 3 498.0 17
430_D11 Diatonic tetrachord 20/19 * 19/17 * 17/15, Ptolemy 3 498.0 19
431_D11 Diatonic tetrachord 15/14 * 56/51 * 17/15 3 498.0 17
432_D11 Diatonic tetrachord 80/77 * 77/68 * 17/15 3 498.0 17
433_D11 Diatonic tetrachord 12/11 * 55/51 * 17/15 3 498.0 17
434_D11 Diatonic tetrachord 120/109 * 109/102 * 17/15 3 498.0 109
435_D11 Diatonic tetrachord 120/113 * 113/102 * 17/15 3 498.0 113
436_D11 Diatonic tetrachord 24/23 * 115/102 * 17/15 3 498.0 23
437_D11 Diatonic tetrachord 160/153 * 9/8 * 17/15 3 498.0 17
438_D12 Diatonic tetrachord 66/61 * 61/56 * 112/99 3 498.0 61
439_D12 Diatonic tetrachord 99/94 * 47/42 * 112/99 3 498.0 47
440_D12 Diatonic tetrachord 99/89 * 89/84 * 112/99 3 498.0 89
441_D12 Diatonic tetrachord 10/9 * 297/280 * 112/99 3 498.0 11
442_D12 Diatonic tetrachord 22/21 * 9/8 * 112/99 3 498.0 11
443_D13 Diatonic tetrachord 12/11 * 13/12 * 44/39, Young 3 498.0 13
444_D13 Diatonic tetrachord 39/35 * 35/33 * 44/39 3 498.0 13
445_D13 Diatonic tetrachord 39/37 * 37/33 * 44/39 3 498.0 37
446_D13 Diatonic tetrachord 44/39 * 9/8 * 104/99 3 498.0 13
447_D14 Diatonic tetrachord 90/83 * 83/76 * 152/135 3 498.0 83
448_D14 Diatonic tetrachord 135/128 * 64/57 * 152/135 3 498.0 19
449_D14 Diatonic tetrachord 135/121 * 121/114 * 152/135 3 498.0 19
450_D14 Diatonic tetrachord 20/19 * 9/8 * 152/135 3 498.0 19
451_D15 Diatonic tetrachord 64/59 * 59/54 * 9/8, Safiyu-d-Din 3 498.0 59
452_D15 Diatonic tetrachord 48/43 * 86/81 * 9/8, Safiyu-d-Din 3 498.0 43
453_D15 Diatonic tetrachord 96/91 * 91/81 * 9/8 3 498.0 13
454_D15 Diatonic tetrachord 256/243 * 9/8 * 9/8, Pythagoras? 3 498.0 3
455_D15 Diatonic tetrachord 16/15 * 9/8 * 10/9, Ptolemy, Didymos 3 498.0 5
456_D15 Diatonic tetrachord 2187/2048 * 65536/59049 * 9/8, Anonymous 3 498.0 3
457_D15 Diatonic tetrachord 9/8 * 12/11 * 88/81, Avicenna 3 498.0 11
458_D15 Diatonic tetrachord 13/12 * 9/8 * 128/117, Avicenna 3 498.0 13
459_D15 Diatonic tetrachord 14/13 * 9/8 * 208/189, Avicenna 3 498.0 13
460_D15 Diatonic tetrachord 9/8 * 11/10 * 320/297, Al-Farabi 3 498.0 11
461_D15 Diatonic tetrachord 9/8 * 15/14 * 448/405 3 498.0 7
462_D15 Diatonic tetrachord 9/8 * 17/16 * 512/459 3 498.0 17
463_D15 Diatonic tetrachord 9/8 * 18/17 * 272/243 3 498.0 17
464_D15 Diatonic tetrachord 9/8 * 19/18 * 64/57 3 498.0 19
465_D15 Diatonic tetrachord 56/51 * 9/8 * 68/63 3 498.0 17
466_D15 Diatonic tetrachord 9/8 * 200/189 * 28/25 3 498.0 7
467_D15 Diatonic tetrachord 184/171 * 9/8 * 76/69 3 498.0 23
468_D15 Diatonic tetrachord 32/29 * 9/8 * 29/27 3 498.0 29
469_D15 Diatonic tetrachord 121/108 * 9/8 * 128/121, Partch 3 498.0 11
470_D15 Diatonic tetrachord 9/8 * 4096/3645 * 135/128 3 498.0 5
471_D15 Diatonic tetrachord 9/8 * 7168/6561 * 243/224 3 498.0 7
472_D15 Diatonic tetrachord 35/32 * 1024/945 * 9/8 3 498.0 7
473_D16 Diatonic tetrachord 11/10 * 13/12 * 160/143, Al-Farabi 3 498.0 13
474_D17 Diatonic tetrachord 12/11 * 11/10 * 10/9, Ptolemy 3 498.0 11
475_D17 Diatonic tetrachord 10/9 * 10/9 * 27/25, Al-Farabi 3 498.0 5
476_D17 Diatonic tetrachord 10/9 * 13/12 * 72/65, Avicenna 3 498.0 13
477_R1 Reduplicated tetrachord 11/10 * 11/10 * 400/363 3 498.0 11
478_R2 Reduplicated tetrachord 12/11 * 12/11 * 121/108, Avicenna 3 498.0 11
479_R3 Reduplicated tetrachord 13/12 * 13/12 * 192/169, Avicenna 3 498.0 13
480_R4 Reduplicated tetrachord 14/13 * 14/13 * 169/147, Avicenna 3 498.0 13
481_R5 Reduplicated tetrachord 15/14 * 15/14 * 784/675, Avicenna 3 498.0 7
482_R6 Reduplicated tetrachord 2187/2048 * 16777216/14348907 * 2187/2048, Palmer 3 498.0 3
483_R7 Reduplicated tetrachord 17/16 * 17/16 * 1024/867 3 498.0 17
484_R8 Reduplicated tetrachord 18/17 * 18/17 * 289/243 3 498.0 17
485_R9 Reduplicated tetrachord 256/243 * 256/243 * 19683/16384 3 498.0 3
486_R10 Reduplicated tetrachord 22/21 * 147/121 * 22/21 3 498.0 11
487_R11 Reduplicated tetrachord 25/24 * 25/24 * 768/625 3 498.0 5
488_R12 Reduplicated tetrachord 28/27 * 28/27 * 243/196 3 498.0 7
489_R13 Reduplicated tetrachord 34/33 * 34/33 * 363/289 3 498.0 17
490_R14 Reduplicated tetrachord 36/35 * 36/35 * 1225/972 3 498.0 7
491_R15 Reduplicated tetrachord 40/39 * 40/39 * 507/400 3 498.0 13
492_R16 Reduplicated tetrachord 46/45 * 46/45 * 675/529 3 498.0 23
493_M1 Miscellaneous tetrachord 176/175 * 175/174 * 29/22 3 498.0 29
494_M2 Miscellaneous tetrachord 25/19 * 931/925 * 148/147 3 498.0 37
495_M3 Miscellaneous tetrachord 128/127 * 127/126 * 21/16 3 498.0 127
496_M4 Miscellaneous tetrachord 21/16 * 656/651 * 124/123 3 498.0 41
497_M5 Miscellaneous tetrachord 104/103 * 103/102 * 17/13 3 498.0 103
498_M6 Miscellaneous tetrachord 17/13 * 429/425 * 100/99 3 498.0 17
499_M7 Miscellaneous tetrachord 98/97 * 97/96 * 64/49 3 498.0 97
500_M8 Miscellaneous tetrachord 92/91 * 91/90 * 30/23 3 498.0 23
501_M9 Miscellaneous tetrachord 90/89 * 89/88 * 176/135 3 498.0 89
502_M10 Miscellaneous tetrachord 88/87 * 87/86 * 43/33 3 498.0 43
503_M11 Miscellaneous tetrachord 86/85 * 85/84 * 56/43 3 498.0 43
504_M12 Miscellaneous tetrachord 84/83 * 83/82 * 82/63 3 498.0 83
505_M13 Miscellaneous tetrachord 82/81 * 81/80 * 160/123 3 498.0 41
506_M14 Miscellaneous tetrachord 13/10 * 250/247 * 76/75 3 498.0 19
507_M15 Miscellaneous tetrachord 78/77 * 77/76 * 152/117 3 498.0 19
508_M16 Miscellaneous tetrachord 76/75 * 75/74 * 74/57 3 498.0 37
509_M17 Miscellaneous tetrachord 74/73 * 73/72 * 48/37 3 498.0 73
510_M18 Miscellaneous tetrachord 70/69 * 69/68 * 136/105 3 498.0 23
511_M19 Miscellaneous tetrachord 22/17 * 357/352 * 64/63 3 498.0 17
512_M20 Miscellaneous tetrachord 58/57 * 57/56 * 112/87 3 498.0 29
513_M21 Miscellaneous tetrachord 87/86 * 43/42 * 112/87 3 498.0 43
514_M22 Miscellaneous tetrachord 87/85 * 85/84 * 112/87 3 498.0 29
515_M23 Miscellaneous tetrachord 68/53 * 53/52 * 52/51 3 498.0 53
516_M24 Miscellaneous tetrachord 136/133 * 133/130 * 65/51 3 498.0 19
517_M25 Miscellaneous tetrachord 68/67 * 67/65 * 65/51 3 498.0 67
518_M26 Miscellaneous tetrachord 34/33 * 66/65 * 65/51 3 498.0 17
519_M27 Miscellaneous tetrachord 68/67 * 67/54 * 18/17 3 498.0 67
520_M28 Miscellaneous tetrachord 25/24 * 32/31 * 31/25 3 498.0 31
521_M29 Miscellaneous tetrachord 68/55 * 55/54 * 18/17 3 498.0 17
522_M30 Miscellaneous tetrachord 68/67 * 67/63 * 21/17 3 498.0 67
523_M31 Miscellaneous tetrachord 68/65 * 65/63 * 21/17 3 498.0 17
524_M32 Miscellaneous tetrachord 36/35 * 256/243 * 315/256 3 498.0 7
525_M33 Miscellaneous tetrachord 64/63 * 16/15 * 315/256 3 498.0 7
526_M34 Miscellaneous tetrachord 64/63 * 2187/2048 * 896/729 3 498.0 7
527_M35 Miscellaneous tetrachord 36/35 * 135/128 * 896/729 3 498.0 7
528_M36 Miscellaneous tetrachord 28/27 * 2187/1792 * 256/243 3 498.0 7
529_M37 Miscellaneous tetrachord 16/15 * 2240/2187 * 2187/1792 3 498.0 7
530_M38 Miscellaneous tetrachord 28/27 * 128/105 * 135/128 3 498.0 7
531_M39 Miscellaneous tetrachord 17/16 * 32/31 * 62/51 3 498.0 31
532_M40 Miscellaneous tetrachord 20/19 * 57/47 * 47/45 3 498.0 47
533_M41 Miscellaneous tetrachord 360/349 * 349/327 * 109/90 3 498.0 349
534_M42 Miscellaneous tetrachord 24/23 * 115/109 * 109/90 3 498.0 109
535_M43 Miscellaneous tetrachord 240/229 * 229/218 * 109/90 3 498.0 229
536_M44 Miscellaneous tetrachord 19/18 * 24/23 * 23/19 3 498.0 23
537_M45 Miscellaneous tetrachord 15/14 * 36/35 * 98/81 3 498.0 7
538_M46 Miscellaneous tetrachord 28/27 * 16/15 * 135/112 3 498.0 7
539_M47 Miscellaneous tetrachord 24/23 * 115/96 * 16/15 3 498.0 23
540_M48 Miscellaneous tetrachord 256/243 * 243/230 * 115/96 3 498.0 23
541_M49 Miscellaneous tetrachord 68/67 * 67/56 * 56/51 3 498.0 67
542_M50 Miscellaneous tetrachord 68/57 * 19/18 * 18/17 3 498.0 19
543_M51 Miscellaneous tetrachord 15/14 * 266/255 * 68/57 3 498.0 19
544_M52 Miscellaneous tetrachord 256/243 * 243/229 * 229/192 3 498.0 229
545_M53 Miscellaneous tetrachord 32/31 * 13/12 * 31/26 3 498.0 31
546_M54 Miscellaneous tetrachord 240/227 * 227/214 * 107/90 3 498.0 227
547_M55 Miscellaneous tetrachord 360/347 * 347/321 * 107/90 3 498.0 347
548_M56 Miscellaneous tetrachord 7168/6561 * 36/35 * 1215/1024 3 498.0 7
549_M57 Miscellaneous tetrachord 16/15 * 1215/1024 * 256/243 3 498.0 5
550_M58 Miscellaneous tetrachord 28/27 * 1024/945 * 1215/1024 3 498.0 7
551_M59 Miscellaneous tetrachord 120/113 * 113/106 * 53/45 3 498.0 113
552_M60 Miscellaneous tetrachord 180/173 * 173/159 * 53/45 3 498.0 173
553_M61 Miscellaneous tetrachord 90/83 * 166/159 * 53/45 3 498.0 83
554_M62 Miscellaneous tetrachord 24/23 * 115/106 * 53/45 3 498.0 53
555_M63 Miscellaneous tetrachord 34/29 * 58/57 * 19/17 3 498.0 29
556_M64 Miscellaneous tetrachord 10/9 * 117/100 * 40/39 3 498.0 13
557_M65 Miscellaneous tetrachord 120/113 * 113/97 * 97/90 3 498.0 113
558_M66 Miscellaneous tetrachord 13/12 * 55/52 * 64/55 3 498.0 13
559_M67 Miscellaneous tetrachord 68/65 * 65/56 * 56/51 3 498.0 17
560_M68 Miscellaneous tetrachord 12/11 * 297/256 * 256/243 3 498.0 11
561_M69 Miscellaneous tetrachord 28/27 * 81/70 * 10/9 3 498.0 7
562_M70 Miscellaneous tetrachord 81/70 * 2240/2187 * 9/8 3 498.0 7
563_M71 Miscellaneous tetrachord 81/70 * 256/243 * 35/32 3 498.0 7
564_M72 Miscellaneous tetrachord 135/128 * 7168/6561 * 81/70 3 498.0 7
565_M73 Miscellaneous tetrachord 60/59 * 59/51 * 17/15 3 498.0 59
566_M74 Miscellaneous tetrachord 40/37 * 37/32 * 16/15 3 498.0 37
567_M75 Miscellaneous tetrachord 16/15 * 280/243 * 243/224 3 498.0 7
568_M76 Miscellaneous tetrachord 36/35 * 9/8 * 280/243 3 498.0 7
569_M77 Miscellaneous tetrachord 8/7 * 81/80 * 280/243 3 498.0 7
570_M78 Miscellaneous tetrachord 46/45 * 132/115 * 25/22 3 498.0 23
571_M79 Miscellaneous tetrachord 16/15 * 12/11 * 55/48 3 498.0 11
572_M80 Miscellaneous tetrachord 10/9 * 63/55 * 22/21 3 498.0 11
573_M81 Miscellaneous tetrachord 30/29 * 116/103 * 103/90 3 498.0 103
574_M82 Miscellaneous tetrachord 360/343 * 343/309 * 103/90 3 498.0 103
575_M83 Miscellaneous tetrachord 40/39 * 143/125 * 25/22 3 498.0 13
576_M84 Miscellaneous tetrachord 68/65 * 65/57 * 19/17 3 498.0 19
577_M85 Miscellaneous tetrachord 256/243 * 729/640 * 10/9 3 498.0 5
578_M86 Miscellaneous tetrachord 30/29 * 58/51 * 17/15 3 498.0 29
579_M87 Miscellaneous tetrachord 23/21 * 14/13 * 26/23 3 498.0 23
580_M88 Miscellaneous tetrachord 23/22 * 44/39 * 26/23 3 498.0 23
581_M89 Miscellaneous tetrachord 14/13 * 260/231 * 11/10 3 498.0 13
582_M90 Miscellaneous tetrachord 4096/3645 * 35/32 * 243/224 3 498.0 7
583_M91 Miscellaneous tetrachord 38/35 * 35/32 * 64/57 3 498.0 19
584_M92 Miscellaneous tetrachord 19/17 * 17/16 * 64/57 3 498.0 19
585_M93 Miscellaneous tetrachord 11/10 * 95/88 * 64/57 3 498.0 19
586_M94 Miscellaneous tetrachord 240/221 * 221/202 * 101/90 3 498.0 101
587_M95 Miscellaneous tetrachord 15/14 * 112/101 * 101/90 3 498.0 101
588_M96 Miscellaneous tetrachord 120/113 * 113/101 * 101/90 3 498.0 113
589_M97 Miscellaneous tetrachord 533/483 * 575/533 * 28/25 3 498.0 41
590_M98 Miscellaneous tetrachord 19/17 * 85/76 * 16/15 3 498.0 19
591_M99 Miscellaneous tetrachord 19/17 * 1156/1083 * 19/17 3 498.0 19
592_M100 Miscellaneous tetrachord 68/63 * 21/19 * 19/17 3 498.0 19
593_M101 Miscellaneous tetrachord 10/9 * 108/97 * 97/90 3 498.0 97
594_T1 Aristoxenian style tetrachord 2 + 2 + 26, Chapter 4 3 500.0
595_T2 Aristoxenian style tetrachord 2.5 + 2.5 + 25, Chapter 4 3 500.0
596_T3 Aristoxenian style tetrachord 2 + 3 + 25, Chapter 4 3 500.0
597_T4 Aristoxenian style tetrachord 3 + 3 + 24, Aristoxenos 3 500.0
598_T5 Aristoxenian style tetrachord 2 + 4 + 24, Chapter 4 3 500.0
599_T6 Aristoxenian style tetrachord 2 + 5 + 23, Chapter 4 3 500.0
600_T7 Aristoxenian style tetrachord 7/3 + 14/3 + 23, Chapter 4 3 500.0
601_T8 Aristoxenian style tetrachord 4 + 3 + 23, Chapter 3 3 500.0
602_T9 Aristoxenian style tetrachord 3.5 + 3.5 + 23, Chapter 4 3 500.0
603_T10 Aristoxenian style tetrachord 2 + 6 + 22, Chapter 4 3 500.0
604_T11 Aristoxenian style tetrachord 4 + 4 + 22, Aristoxenos 3 500.0
605_T12 Aristoxenian style tetrachord 8/3 + 16/3 + 22, Chapter 4 3 500.0
606_T13 Aristoxenian style tetrachord 3 + 5 + 22, Chapter 4 3 500.0
607_T14 Aristoxenian style tetrachord 4.5 + 3.5 + 22, Aristoxenos 3 500.0
608_T15 Aristoxenian style tetrachord 2 + 7 + 21, Chapter 4 3 500.0
609_T16 Aristoxenian style tetrachord 3 + 6 + 21, Chapter 4 3 500.0
610_T17 Aristoxenian style tetrachord 4.5 + 4.5 + 21, Aristoxenos 3 500.0
611_T18 Aristoxenian style tetrachord 4 + 5 + 21, Chapter 4 3 500.0
612_T19 Aristoxenian style tetrachord 6 + 3 + 21, Aristoxenos 3 500.0
613_T20 Aristoxenian style tetrachord 6 + 20 + 4, Savas 3 500.0
614_T21 Aristoxenian style tetrachord 10/3 + 20/3 + 20, Chapter 4 3 500.0
615_T22 Aristoxenian style tetrachord 5 + 5 + 20, Chapter 4 3 500.0
616_T23 Aristoxenian style tetrachord 5.5 + 5.5 + 19, Chapter 4 3 500.0
617_T24 Aristoxenian style tetrachord 11/3 + 22/3 + 19, Chapter 4 3 500.0
618_T25 Aristoxenian style tetrachord 5 + 19 + 6, Xenakis 3 500.0
619_T26 Aristoxenian style tetrachord 5 + 6 + 19, Macran 3 500.0
620_T27 Aristoxenian style tetrachord 2 + 10 + 18, Chapter 4 3 500.0
621_T28 Aristoxenian style tetrachord 3 + 9 + 18, Chapter 4 3 500.0
622_T29 Aristoxenian style tetrachord 4 + 8 + 18, Aristoxenos 3 500.0
623_T30 Aristoxenian style tetrachord 4.5 + 7.5 + 18, Chapter 4 3 500.0
624_T31 Aristoxenian style tetrachord 6 + 6 + 18, Aristoxenos 3 500.0
625_T32 Aristoxenian style tetrachord 5 + 7 + 18, Chapter 4 3 500.0
626_T33 Aristoxenian style tetrachord 6 + 18 + 6, Athanasopoulos 3 500.0
627_T34 Aristoxenian style tetrachord 13/3 + 26/3 + 17, Chapter 4 3 500.0
628_T35 Aristoxenian style tetrachord 6.5 + 6.5 + 17, Chapter 4 3 500.0
629_T36 Aristoxenian style tetrachord 2 + 16 + 12, Chapter 4 3 500.0
630_T37 Aristoxenian style tetrachord 14/3 + 28/3 + 16, Chapter 4 3 500.0
631_T38 Aristoxenian style tetrachord 5 + 9 + 16, Winnington-Ingram 3 500.0
632_T39 Aristoxenian style tetrachord 8 + 16 + 6, Savas 3 500.0
633_T40 Aristoxenian style tetrachord 7 + 16 + 7, Xenakis; Chapter 4 3 500.0
634_T41 Aristoxenian style tetrachord 2 + 13 + 15, Chapter 4 3 500.0
635_T42 Aristoxenian style tetrachord 3 + 12 + 15, Chapter 4 3 500.0
636_T43 Aristoxenian style tetrachord 4 + 11 + 15, Chapter 4 3 500.0
637_T44 Aristoxenian style tetrachord 5 + 10 + 15, Chapter 4 3 500.0
638_T45 Aristoxenian style tetrachord 6 + 9 + 15, Aristoxenos 3 500.0
639_T46 Aristoxenian style tetrachord 7 + 8 + 15, Chapter 4 3 500.0
640_T47 Aristoxenian style tetrachord 7.5 + 7.5 + 15, Chapter 4 3 500.0
641_T48 Aristoxenian style tetrachord 9 + 15 + 6, Athanasopoulos 3 500.0
642_T49 Aristoxenian style tetrachord 2 + 14 + 14, Chapter 4 3 500.0
643_T50 Aristoxenian style tetrachord 4 + 14 + 12, Aristoxenos 3 500.0
644_T51 Aristoxenian style tetrachord 5 + 11 + 14, Winnington-Ingram 3 500.0
645_T52 Aristoxenian style tetrachord 16/3 + 32/3 + 14, Chapter 4 3 500.0
646_T53 Aristoxenian style tetrachord 8 + 8 + 14, Chapter 4 3 500.0
647_T54 Aristoxenian style tetrachord 4.5 + 13.5 + 12, Aristoxenos 3 500.0
648_T55 Aristoxenian style tetrachord 5 + 12 + 13, Chapter 4 3 500.0
649_T56 Aristoxenian style tetrachord 4 + 13 + 13, Chapter 4 3 500.0
650_T57 Aristoxenian style tetrachord 17/3 + 34/3 + 13, Chapter 4 3 500.0
651_T58 Aristoxenian style tetrachord 8.5 + 8.5 + 13, Chapter 4 3 500.0
652_T59 Aristoxenian style tetrachord 6 + 12 + 12, Aristoxenos 3 500.0
653_T60 Aristoxenian style tetrachord 12 + 11 + 7, Xenakis 3 500.0
654_T61 Aristoxenian style tetrachord 10 + 8 + 12, Savas 3 500.0
655_T62 Aristoxenian style tetrachord 12 + 9 + 9, Al-Farabi; Chapter 4 3 500.0
656_T63 Aristoxenian style tetrachord 8 + 11 + 11, Chapter 4 3 500.0
657_T64 Aristoxenian style tetrachord 9.5 + 9.5 + 11, Chapter 4 3 500.0
658_T65 Aristoxenian style tetrachord 10 + 10 + 10, Al-Farabi 3 500.0
659_T66 Aristoxenian style tetrachord 12 + 13 + 3, Tiby 3 494.0
660_T67 Aristoxenian style tetrachord 12 + 5 + 11, Tiby 3 494.0
661_T68 Aristoxenian style tetrachord 12 + 9 + 7, Tiby 3 494.0
662_T69 Aristoxenian style tetrachord 9 + 12 + 7, Tiby 3 494.0
663_T70 Tempered tetrachord in cents 22.7 + 22.7 + 454.4, Chapter 5 3 499.8
664_T71 Tempered tetrachord in cents 37.5 + 37.5 + 425, Chapter 5 3 500.0
665_T72 Tempered tetrachord in cents 62.5 + 62.5 + 375, Chapter 5 3 500.0
666_T73 Tempered tetrachord in cents 95 + 115 + 290, Chapter 5 3 500.0
667_T74 Tempered tetrachord in cents 89 + 289 + 122, Chapter 5 3 500.0
668_T75 Tempered tetrachord in cents 87.5 + 287.5 + 125, Chapter 5 3 500.0
669_T76 Tempered tetrachord in cents 83.3 + 283.3 + 133.3, Chapter 5 3 499.9
670_T77 Tempered tetrachord in cents 75 + 275 + 150, Chapter 5 3 500.0
671_T78 Tempered tetrachord in cents 100 + 275 + 125, Chapter 5 3 500.0
672_T79 Tempered tetrachord in cents 55 + 170 + 275, Chapter 5 3 500.0
673_T80 Tempered tetrachord in cents 66.7 + 266.7 + 166.7, Chapter 5 3 500.1
674_T81 Tempered tetrachord in cents 233.3 + 16.7 + 250, Chapter 5 3 500.0
675_T82 Tempered tetrachord in cents 225 + 25 + 250, Chapter 5 3 500.0
676_T83 Tempered tetrachord in cents 66.7 + 183.3 + 250, Chapter 5 3 500.0
677_T84 Tempered tetrachord in cents 75 + 175 + 250, Chapter 5 3 500.0
678_T85 Tempered tetrachord in cents 125 + 125 + 250, Chapter 5 3 500.0
679_T86 Tempered tetrachord in cents 105 + 145 + 250, Chapter 5 3 500.0
680_T87 Tempered tetrachord in cents 110 + 140 + 250, Chapter 5 3 500.0
681_T88 Tempered tetrachord in cents 87.5 + 237.5 + 175, Chapter 5 3 500.0
682_T89 Tempered tetrachord in cents 233.3 + 166.7 + 100, Chapter 5 3 500.0
683_T90 Tempered tetrachord in cents 212.5 + 62.5 + 225, Chapter 5 3 500.0
684_T91 Tempered tetrachord in cents 225 + 75 + 200, Chapter 5 3 500.0
685_T92 Tempered tetrachord in cents 225 + 175 + 100, Chapter 5 3 500.0
686_T93 Tempered tetrachord in cents 87.5 + 187.5 + 225, Chapter 5 3 500.0
687_T94 Tempered tetrachord in cents 212.5 + 162.5 + 125, Chapter 5 3 500.0
688_T95 Tempered tetrachord in cents 100 + 187.5 + 212.5, Chapter 5 3 500.0
689_T96 Tempered tetrachord in cents 212.5 + 137.5 + 150, Chapter 5 3 500.0
690_T97 Tempered tetrachord in cents 200 + 125 + 175, Chapter 5 3 500.0
691_T98 Tempered tetrachord in cents 145 + 165 + 190, Chapter 5 3 500.0
692_S1 Semi-tempered tetrachord 16/((9*sqrt(3))) * 16/((9*sqrt(3))) * 81/64 3 498.0
693_S2 Semi-tempered tetrachord 1.26376 * 1.05231 * 1.0026 3 498.0
694_S3 Semi-tempered tetrachord (4/3)**(1/10) * (4/3)**(1/10) * (4/3)**(8/10) 3 498.0
695_S4 Semi-tempered tetrachord (4/3)**(2/15) * (4/3)**(2/15) * (4/3)**(11/15) 3 498.0
696_S5 Semi-tempered tetrachord (4/3)**(3/20) * (4/3)**(7/60) * (4/3)**(11/15) 3 498.0
697_S6 Semi-tempered tetrachord (4/3)**(3/20) * (4/3)**(3/20) * (4/3)**(7/10) 3 498.0
698_S7 Semi-tempered tetrachord (4/3)**(1/5) * (4/3)**(1/10) * (4/3)**(7/10) 3 498.0
699_S8 Semi-tempered tetrachord 1.21677 * 1.03862 * 1.05505 3 498.0
700_S9 Semi-tempered tetrachord (4/3)**(1/5) * (4/3)**(1/5) * (4/3)**(3/5) 3 498.0
701_S10 Semi-tempered tetrachord (4/3)**(2/15) * (4/3)**(4/15) * (4/3)**(3/5) 3 498.0
702_S11 Semi-tempered tetrachord (3*sqrt(2))/4 * (3*sqrt(2))/4 * 32/27 3 498.0
703_S12 Semi-tempered tetrachord 1.18046 * 1.06685 * 1.05873 3 498.0
704_S13 Semi-tempered tetrachord 1.05956 * 1.06763 * 1.17876 3 498.2
705_S14 Semi-tempered tetrachord 1.17867 * 1.06763 * 1.05963 3 498.2
706_S15 Semi-tempered tetrachord 1.17851 * 1.06771 * 1.05963 3 498.1
707_S16 Semi-tempered tetrachord 1.17691 * 1.06807 * 1.06069 3 498.0
708_S17 Semi-tempered tetrachord (4/3)**(1/5) * (4/3)**(3/10) * (4/3)**(1/2) 3 498.0
709_S18 Semi-tempered tetrachord 1.07457 * 1.07457 * 1.154701 3 498.0
710_S19 Semi-tempered tetrachord (4/3)**(2/15) * (4/3)**(7/15) * (4/3)**(2/5) 3 498.0
711_S20 Semi-tempered tetrachord 1.13847 * 1.125 * 1.041 3 498.0
712_S21 Semi-tempered tetrachord (4/3)**(3/20) * (4/3)**(9/20) * (4/3)**(2/5) 3 498.0
713_S22 Semi-tempered tetrachord 1.13371 * 1.125 * 1.0454 3 498.0
714_S23 Semi-tempered tetrachord 1.13315 * 1.125 * 1.04595 3 498.1
715_S24 Semi-tempered tetrachord 1.09185 * 1.07803 * 1.13278 3 498.0
716_S25 Semi-tempered tetrachord 1.09291 * 1.078328 * 1.13137 3 498.0
717_S26 Semi-tempered tetrachord 1.09301 * 1.07837 * 1.13122 3 498.0
718_S27 Semi-tempered tetrachord 1.09429 * 1.07874 * 1.1295 3 498.0
719_S28 Semi-tempered tetrachord 1.1295 * 1.125 * 1.0493 3 498.0
720_S29 Semi-tempered tetrachord 1.08866 * 1.125 * 1.08866 3 498.0
721_S30 Semi-tempered tetrachord (4/3)**(1/5) * (4/3)**(2/5) * (4/3)**(2/5) 3 498.0
722_S31 Semi-tempered tetrachord (4/3)**(1/3) * (4/3)**(1/3) * (4/3)**(1/3) 3 498.0
723_S32 Semi-tempered tetrachord (4/3)**(2/5) * (4/3)**(3/10) * (4/3)**(3/10) 3 498.0