1880edo

Revision as of 12:27, 30 October 2023 by FloraC (talk | contribs) (Expand; +subsets and supersets)
← 1879edo 1880edo 1881edo →
Prime factorization 23 × 5 × 47
Step size 0.638298 ¢ 
Fifth 1100\1880 (702.128 ¢) (→ 55\94)
Semitones (A1:m2) 180:140 (114.9 ¢ : 89.36 ¢)
Consistency limit 7
Distinct consistency limit 7

Template:EDO intro

1880 = 20 × 94, and 1880edo shares its harmonic 3 with 94edo. It is consistent in the 7-odd-limit, and is overall a decent 13-limit system, although its 9/8 is off the stack of two 3/2's by one step, which prevents consistency in the 9-odd-limit.

In the 13-limit, it tempers out 6656/6655 and supports the 2.5.7.11.13 subgroup eternal revolutionary temperament.

Odd harmonics

Approximation of odd harmonics in 1880edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) +0.173 -0.144 +0.110 -0.293 +0.171 +0.111 +0.029 -0.275 -0.066 +0.283 -0.189
Relative (%) +27.0 -22.5 +17.3 -45.9 +26.9 +17.3 +4.6 -43.0 -10.4 +44.3 -29.6
Steps
(reduced)
2980
(1100)
4365
(605)
5278
(1518)
5959
(319)
6504
(864)
6957
(1317)
7345
(1705)
7684
(164)
7986
(466)
8258
(738)
8504
(984)

Subsets and supersets

Since 1880 factors into 23 × 5 × 47, 1880edo has subset edos 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, and 940.