426edo
Theory
426et is consistent to the 9-odd-limit. Using the patent val, it tempers out 283115520/282475249, 48828125/48771072, 65625/65536, 250047/250000 and 5250987/5242880 in the 7-limit; 117440512/117406179, 806736/805255, 25165824/25109315, 2097152/2096325, 4000/3993, 2734375/2725888, 166698/166375, 151263/151250, 104857600/104825259, 2359296/2358125, 540/539, 1265625/1261568, 107495424/107421875, 137781/137500, 5767168/5764801, 825000/823543, 24057/24010, 17537553/17500000, 9801/9800 and 3294225/3294172 in the 11-limit. It supports untriton.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +0.00 | -0.55 | -0.40 | +0.19 | +0.79 | -1.09 | -0.73 | +1.08 | -0.11 | -1.41 | -1.37 |
| Relative (%) | +0.0 | -19.4 | -14.1 | +6.7 | +28.2 | -38.7 | -25.9 | +38.3 | -3.7 | -50.0 | -48.8 | |
| Steps (reduced) |
426 (0) |
675 (249) |
989 (137) |
1196 (344) |
1474 (196) |
1576 (298) |
1741 (37) |
1810 (106) |
1927 (223) |
2069 (365) |
2110 (406) | |
Subsets and supersets
426 factors into 2 × 3 × 71, with subset edos 2, 3, 6, 71, 142, and 213.
Regular temperament properties
| Subgroup | Comma List | Mapping | Optimal 8ve Stretch (¢) |
Tuning Error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3 | [-225 142⟩ | [⟨426 675]] | 0.1724 | 0.1724 | 6.12 |
| 2.3.5 | [-7 22 -12⟩, [-44 -3 21⟩ | [⟨426 675 989]] | 0.1721 | 0.1408 | 5.00 |
| 2.3.5.7 | 250047/250000, 118098/117649, 65625/65536 | [⟨426 675 989 1196]] | 0.1123 | 0.1600 | 5.68 |
Rank-2 temperaments
| Periods per 8ve |
Generator* | Cents* | Associated Ratio* |
Temperaments |
|---|---|---|---|---|
| 1 | 199\426 | 560.56 | 864/625 | Whoosh |
| 1 | 209\426 | 588.73 | 7/5 | Untriton |
| 3 | 137\426 (5\426) |
385.92 (14.08) |
5/4 (8393216/390625) |
Mutt |
* octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if it is distinct