232edo

Revision as of 03:36, 24 June 2023 by BudjarnLambeth (talk | contribs) (Added "harmonics in equal" table)

The 232 equal division divides the octave into 232 equal parts of 5.172 cents each. It provides the optimal patent val for 13-limit mystery temperament, the rank three pele temperament and the rank three trimyna temperament and other temperaments tempering out 196/195, for which it gives the optimal patent val for the corresponding rank five temperament.

← 231edo 232edo 233edo →
Prime factorization 23 × 29
Step size 5.17241 ¢ 
Fifth 136\232 (703.448 ¢) (→ 17\29)
Semitones (A1:m2) 24:16 (124.1 ¢ : 82.76 ¢)
Consistency limit 5
Distinct consistency limit 5

Aside from its patent val, the 232d val is worth considering. Both temper out the wuerschmidt comma, 393216/390625, in the 5-limit.

In the 7-limit, the patent val tempers out hemifamity, 5120/5103 and the trimyna comma, 50421/50000; and 232d 3125/3097 and 245/243, supporting bohpier temperament. In the 11-limit, the patent val tempers out 441/440 and 896/891, and 232d 540/539, 1375/1372 and 4000/3993, supporting octoid. In the 13-limit, the patent val tempers out 196/195, 352/351, 364/363, 441/440 and 676/675, which leads to 13-limit mystery, for which it provides the optimal patent val. 232d also tempers out 352/351 and 676/675, which supports variants of octoid.

Considering the 232edo patent val, 13-limit mystery and 13-limit pele, we note that because it tempers out 441/440 it allows werckismic chords, because it tempers out 196/195 it allows mynucumic chords, because it tempers out 352/351 it allows minthmic chords, and because it tempers out 364/363 it allows gentle chords, and because it tempers out 847/845 it allows the cuthbert triad, making it a very flexible harmonic system.


Approximation of odd harmonics in 232edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) +1.49 +1.62 -1.58 -2.19 +2.13 +2.58 -2.06 -1.51 +2.49 -0.09 -2.41
Relative (%) +28.9 +31.3 -30.6 -42.3 +41.2 +49.8 -39.9 -29.1 +48.1 -1.8 -46.6
Steps
(reduced)
368
(136)
539
(75)
651
(187)
735
(39)
803
(107)
859
(163)
906
(210)
948
(20)
986
(58)
1019
(91)
1049
(121)