261/256

Interval information

Ratio	261/256
Subgroup monzo	2.3.29 [-8 2 1⟩
Size in cents	33.4872¢
Name	29-limit ~sixth tone (HEJI)
Color name	29o1, tweno unison
FJS name	[math]\displaystyle{ \text{P1}^{29} }[/math]
Special properties	reduced, reduced harmonic
Tenney norm (log2 nd)	16.0279
Weil norm (log2 max(n, d))	16.0558
Wilson norm (sopfr(nd))	51
Comma size	medium
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261/256, or the 29-limit ~sixth tone, is a 2.3.29 subgroup comma. It is the amount by which 29/16 (the 29th harmonic) exceeds the Pythagorean minor seventh (16/9). It is significant in Helmholtz-Ellis notation as the formal comma to translate a Pythagorean interval to a nearby 29-limit (prefix???) interval.