229ed169: Difference between revisions

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== Theory ==
229ed169 is similar to [[31edo]], but the octave is stretched by 2.23893{{c}}. Since the 13th harmonic is exactly halfway between 114 and 115 steps, this difference is the absolute maximum amount of octave stretch 31edo can tolerate before a discrepancy for the 13th harmonic occurs.
 
[[Category:31edo]]

Revision as of 22:35, 19 July 2025

← 228ed169 229ed169 230ed169 →
Prime factorization 229 (prime)
Step size 38.7819 ¢ 
Octave 31\229ed169 (1202.24 ¢)
Twelfth 49\229ed169 (1900.31 ¢)
(semiconvergent)
Consistency limit 12
Distinct consistency limit 9

229 equal divisions of the 169th harmonic (abbreviated 229ed169) is a nonoctave tuning system that divides the interval of 169/1 into 229 equal parts of about 38.8 ¢ each. Each step represents a frequency ratio of 1691/229, or the 229th root of 169.

Theory

229ed169 is similar to 31edo, but the octave is stretched by 2.23893 ¢. Since the 13th harmonic is exactly halfway between 114 and 115 steps, this difference is the absolute maximum amount of octave stretch 31edo can tolerate before a discrepancy for the 13th harmonic occurs.