250edo

Revision as of 10:30, 24 January 2023 by FloraC (talk | contribs) ("7\10" is clearer than "0.7 octaves". Harmonics -> subgroup. Add the missing 2 in 2.11.13. Resolve edo vs et)
← 249edo 250edo 251edo →
Prime factorization 2 × 53
Step size 4.8 ¢ 
Fifth 146\250 (700.8 ¢) (→ 73\125)
Semitones (A1:m2) 22:20 (105.6 ¢ : 96 ¢)
Consistency limit 5
Distinct consistency limit 5

Template:EDO intro

250edo is enfactored in the 7-limit, with the same tuning as 125edo, but provides a closer approximation to the harmonics 11 and 13, where the 13/8 derives from 10edo (7\10). Even so, there are a number of mappings to be considered, in particular, a less flat-tending patent val 250 396 580 702 865 925] and a more flat-tending 250deff… val 250 396 580 701 864 924].

In addition, in the patent val in the 11-limit, it is a tuning for the seminar temperament.

Odd harmonics

Approximation of odd harmonics in 250edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) -1.16 -2.31 +0.77 -2.31 +0.68 -0.53 +1.33 +0.64 +0.09 -0.38 +0.53
Relative (%) -24.1 -48.2 +16.1 -48.1 +14.2 -11.0 +27.7 +13.4 +1.8 -7.9 +11.0
Steps
(reduced)
396
(146)
580
(80)
702
(202)
792
(42)
865
(115)
925
(175)
977
(227)
1022
(22)
1062
(62)
1098
(98)
1131
(131)

Divisors

250edo has subset edos 2, 5, 10, 25, 50, 125.

Since the 2.3.5.7 subgroup in the patent val comes from 125et, and the 2.11.13 subgroup in the patent val comes from 50et, this system is worthy of being considered as a superset of these two temperaments.