324edo

Revision as of 09:52, 21 February 2024 by FloraC (talk | contribs) (Cleanup and +subsets and supersets)
← 323edo 324edo 325edo →
Prime factorization 22 × 34
Step size 3.7037 ¢ 
Fifth 190\324 (703.704 ¢) (→ 95\162)
Semitones (A1:m2) 34:22 (125.9 ¢ : 81.48 ¢)
Dual sharp fifth 190\324 (703.704 ¢) (→ 95\162)
Dual flat fifth 189\324 (700 ¢) (→ 7\12)
Dual major 2nd 55\324 (203.704 ¢)
Consistency limit 3
Distinct consistency limit 3

Template:EDO intro

324edo is inconsistent to the 5-odd-limit and harmonic 3 is about halfway between its steps, making it a dual-fifth system, with the flat fifth being the 700-cent fifth coming from 12edo, and the sharp fifth coming from 162edo.

It is nonetheless an excellent 2.9.15.21.11.13 subgroup tuning.

Odd harmonics

Approximation of odd harmonics in 324edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) +1.75 -1.13 +1.54 -0.21 +0.53 +0.21 +0.62 -1.25 -1.22 -0.41 +1.36
Relative (%) +47.2 -30.5 +41.7 -5.6 +14.4 +5.8 +16.7 -33.8 -32.9 -11.1 +36.6
Steps
(reduced)
514
(190)
752
(104)
910
(262)
1027
(55)
1121
(149)
1199
(227)
1266
(294)
1324
(28)
1376
(80)
1423
(127)
1466
(170)

Subsets and supersets

Since 324 factors into 22 × 34, 324edo has subset edos 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, and 162. 648edo, which doubles it, gives a possible correction to its harmonic 3.