1051edo
| ← 1050edo | 1051edo | 1052edo → |
1051 equal divisions of the octave (abbreviated 1051edo or 1051ed2), also called 1051-tone equal temperament (1051tet) or 1051 equal temperament (1051et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 1051 equal parts of about 1.142 ¢ each. Each step represents a frequency ratio of 21/1051, or the 1051st root of 2.
Theory
1051edo only has a consistency limit of 3 and does poorly with approximating the harmonic 5. However, it has a reasonable representation of the 2.3.7.11.17.19 subgroup.
Assume the patent val, 1051et tempers out 2460375/2458624 in the 7-limit; 820125/819896, 2097152/2096325, 514714375/514434888, 180224/180075, 184549376/184528125, 43923/43904 and 20614528/20588575 in the 11-limit.
Odd harmonics
| Harmonic | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | absolute (¢) | +0.233 | -0.396 | +0.537 | +0.467 | +0.157 | -0.185 | -0.162 | +0.087 | +0.489 | -0.372 | -0.301 |
| relative (%) | +20 | -35 | +47 | +41 | +14 | -16 | -14 | +8 | +43 | -33 | -26 | |
| Steps (reduced) |
1666 (615) |
2440 (338) |
2951 (849) |
3332 (179) |
3636 (483) |
3889 (736) |
4106 (953) |
4296 (92) |
4465 (261) |
4616 (412) |
4754 (550) | |
Subsets and supersets
1051edo is the 177th prime edo. 2102edo, which doubles it, gives a good correction to the harmonic 5 and 7. 4212edo, which quadruples it, gives a good correction to the harmonic 3.
Regular temperament properties
| Subgroup | Comma List | Mapping | Optimal 8ve Stretch (¢) |
Tuning Error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3 | [1666 -1051⟩ | [⟨1051 1666]] | -0.0736 | 0.0736 | 6.45 |
| 2.3.5 | [-68 18 17⟩, [-26 -29 31⟩ | [⟨1051 1666 2440]] (1051) | +0.0077 | 0.1298 | 11.4 |
| 2.3.5 | [40 7 -22⟩, [63 -50 7⟩ | [⟨1051 1666 2441]] (1051c) | -0.1562 | 0.1313 | 11.5 |
Music
- you have to run! (2023) – edson in 1051edo tuning