2019edo
| ← 2018edo | 2019edo | 2020edo → |
2019 equal divisions of the octave (2019edo), or 2019-tone equal temperament (2019tet), 2019 equal temperament (2019et) when viewed from a regular temperament perspective, is the tuning system that divides the octave into 2019 equal parts of about 0.594 ¢ each.
Theory
2019edo is excellent in the 2.3.5.7 subgroup, and with such small errors it supports a noticeable amount of very high accuracy temperaments. While it is consistent in the 11-odd-limit, there is a large relative error on the representation of the 11th harmonic.
In higher limits, it tunes 23/16 and 59/32 with the comparable relative accuracy to the 2.3.5.7 subgroup (less than 7% error). A comma basis for the 2.3.5.7.23.59 subgroup is {14337/14336, 25921/25920, 250047/250000, 48234496/48234375, 843396867/843308032}.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | absolute (¢) | +0.000 | -0.023 | +0.016 | -0.029 | +0.242 | -0.112 | +0.245 | +0.258 | -0.043 | -0.157 | +0.284 |
| relative (%) | +0 | -4 | +3 | -5 | +41 | -19 | +41 | +43 | -7 | -26 | +48 | |
| Steps (reduced) |
2019 (0) |
3200 (1181) |
4688 (650) |
5668 (1630) |
6985 (928) |
7471 (1414) |
8253 (177) |
8577 (501) |
9133 (1057) |
9808 (1732) |
10003 (1927) | |
Regular temperament properties
Rank-2 temperaments
| Periods per 8ve |
Generator (Reduced) |
Cents (Reduced) |
Associated Ratio |
Temperaments |
|---|---|---|---|---|
| 1 | 154\2019 | 91.530 | 1953125000000000/1853020188851841 | Gross |
| 1 | 307\2019 | 182.467 | 10/9 | Minortone |
| 3 | 307\2019 | 182.467 | 10/9 | Domain |