559edo
| ← 558edo | 559edo | 560edo → |
559 equal divisions of the octave (abbreviated 559edo or 559ed2), also called 559-tone equal temperament (559tet) or 559 equal temperament (559et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 559 equal parts of about 2.15 ¢ each. Each step represents a frequency ratio of 21/559, or the 559th root of 2.
Theory
559edo is a very strong 5-limit system. The equal temperament tempers out the luna comma, [38 -2 -15⟩ and the minortone comma, [-16 35 -17⟩ in the 5-limit, as well as the monzisma, [54 -37 2⟩; 4375/4374, 2100875/2097152, and 282475249/281250000 in the 7-limit; 12005/11979, 41503/41472, 160083/160000, and 172032/171875 in the 11-limit. Rank-2 temperaments it supports include mitonic, lunatic, acrokleismic, monzism, and meridic.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | absolute (¢) | +0.000 | +0.013 | +0.091 | -0.668 | +0.382 | +0.975 | +0.232 | +0.877 | +0.706 | +0.834 | -0.850 |
| relative (%) | +0 | +1 | +4 | -31 | +18 | +45 | +11 | +41 | +33 | +39 | -40 | |
| Steps (reduced) |
559 (0) |
886 (327) |
1298 (180) |
1569 (451) |
1934 (257) |
2069 (392) |
2285 (49) |
2375 (139) |
2529 (293) |
2716 (480) |
2769 (533) | |
Subsets and supersets
Since 559 factors into 13 × 43, 559edo contains 13edo and 43edo as subsets.
Regular temperament properties
| Subgroup | Comma List | Mapping | Optimal 8ve Stretch (¢) |
Tuning Error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3 | [886 -559⟩ | [⟨559 886]] | -0.0040 | 0.0040 | 0.19 |
| 2.3.5 | [38 -2 -15⟩, [-16 35 -17⟩ | [⟨559 886 1298]] | -0.0157 | 0.0168 | 0.78 |
| 2.3.5.7 | 4375/4374, 2100875/2097152, [-4 -2 -9 10⟩ | [⟨559 886 1298 1569]] | +0.0478 | 0.1109 | 5.16 |
| 2.3.5.7.11 | 4375/4374, 12005/11979, 41503/41472, 172032/171875 | [⟨559 886 1298 1569 1934]] | 0.0161 | 0.1175 | 5.48 |
- 559et has a lower relative error than any previous equal temperaments in the 5-limit, past 441 and before 612.
Rank-2 temperaments
| Periods per 8ve |
Generator* | Cents* | Associated Ratio* |
Temperaments |
|---|---|---|---|---|
| 1 | 90\559 | 182.47 | 10/9 | Mitonic |
| 1 | 90\559 | 193.20 | 352/315 | Lunatic |
| 1 | 116\559 | 249.02 | [-27 11 3 1⟩ | Monzismic |
| 1 | 147\559 | 315.56 | 6/5 | Acrokleismic |
| 13 | 232\559 (17\559) |
498.03 (36.494) |
4/3 (?) |
Aluminium |
| 43 | 232\559 (2\559) |
498.03 (4.29) |
4/3 (385/384) |
Meridic |
* octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if it is distinct