31-limit scales
27 scales
| File | Description | Notes | Period (ยข) | Limit | Source |
|---|---|---|---|---|---|
| 016_H5 | Hyperenharmonic tetrachord 64/63 * 63/62 * 31/24 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 017_H5 | Hyperenharmonic tetrachord 96/95 * 95/93 * 31/24 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 020_H6 | Hyperenharmonic tetrachord 93/92 * 46/45 * 40/31 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 021_H6 | Hyperenharmonic tetrachord 93/91 * 91/90 * 40/31 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 064_E5 | Enharmonic tetrachord 63/62 * 31/30 * 80/63 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 103_E13 | Enharmonic tetrachord 32/31 * 31/30 * 5/4, Didymos | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 204_C12 | Chromatic tetrachord 33/31 * 31/30 * 40/33 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 211_C13 | Chromatic tetrachord 32/31 * 31/29 * 29/24, Schlesinger | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 280_C20 | Chromatic tetrachord 168/155 * 310/297 * 33/28 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 293_C21 | Chromatic tetrachord 34/31 * 31/30 * 20/17 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 333_C26 | Chromatic tetrachord 31/29 * 29/27 * 36/31 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 335_C26 | Chromatic tetrachord 93/85 * 85/81 * 36/31 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 384_D4 | Diatonic tetrachord 54/49 * 98/93 * 31/27 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 385_D4 | Diatonic tetrachord 32/31 * 9/8 * 31/27 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 520_M28 | Miscellaneous tetrachord 25/24 * 32/31 * 31/25 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 531_M39 | Miscellaneous tetrachord 17/16 * 32/31 * 62/51 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 545_M53 | Miscellaneous tetrachord 32/31 * 13/12 * 31/26 | 3 | 498.0 | 31 | Divisions of the Tetrachord |
| 2011-may-31 | May 31, 2011 scale -- based on 5.11.31 subgroup | 12 | 1117.2 | 31 | Mailing lists |
| harm16a | Fifth octave of the harmonic overtone series | 15 | 1145.0 | 31 | Mailing lists |
| indiansouth | South Indian sruti scale of P. Sambamoorthy | 22 | 1200.0 | 31 | Mailing lists |
| ri17isha | Rational intonation (RI) scale with some "17-ish" features (24 notes) | 24 | 1200.0 | 31 | Mailing lists |
| sims | Ezra Sims' 18-tone mode | 18 | 1200.0 | 31 | Mailing lists |
| xen07-chalmers-diaphonic-a | Wilson's Diaphonic Cycles A | 19 | 1200.0 | 31 | Xenharmonikon |
| xen07-chalmers-diaphonic-b | Wilson's Diaphonic Cycles B | 19 | 1200.0 | 31 | Xenharmonikon |
| xen07-chalmers-diaphonic-c | Wilson's Diaphonic Cycles C | 19 | 1200.0 | 31 | Xenharmonikon |
| xen07-chalmers-diaphonic-d | Wilson's Diaphonic Cycles D | 19 | 1200.0 | 31 | Xenharmonikon |
| xen13-mclaren-totient | n/totient(n) scale | 12 | 1088.3 | 31 | Xenharmonikon |