User:Eliora/1380edo: Difference between revisions

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Created page with "{{Infobox ET}} 1380edo tunes zinc. It is consistent in the 11-odd-limit, though just barely. {{harmonics in equal|1380}}"
 
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{{harmonics in equal|1380}}
{{harmonics in equal|1380}}
=== Subsets and supersets ===
1380edo has divisors {{EDOs|1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690}}.

Latest revision as of 17:32, 7 August 2026

← 1379edo 1380edo 1381edo →
Prime factorization 22 × 3 × 5 × 23
Step size 0.869565 ¢ 
Fifth 807\1380 (701.739 ¢) (→ 269\460)
Semitones (A1:m2) 129:105 (112.2 ¢ : 91.3 ¢)
Consistency limit 11
Distinct consistency limit 11

1380edo tunes zinc. It is consistent in the 11-odd-limit, though just barely.


Approximation of odd harmonics in 1380edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) -0.216 -0.227 -0.130 -0.432 -0.014 +0.342 +0.427 +0.262 -0.122 -0.346 +0.421
Relative (%) -24.8 -26.1 -15.0 -49.7 -1.6 +39.3 +49.1 +30.1 -14.0 -39.8 +48.5
Steps
(reduced)
2187
(807)
3204
(444)
3874
(1114)
4374
(234)
4774
(634)
5107
(967)
5392
(1252)
5641
(121)
5862
(342)
6061
(541)
6243
(723)

Subsets and supersets

1380edo has divisors 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690.