256/245

Interval information

Ratio	256/245
Factorization	28 × 5-1 × 7-2
Monzo	[8 0 -1 -2⟩
Size in cents	76.03447¢
Name	bapbo comma
Color name	rrg1, rurugu unison
FJS name	[math]\text{P1}_{5,7,7}[/math]
Special properties	reduced, reduced subharmonic
Tenney height (log2 nd)	15.9366
Weil height (log2 max(n, d))	16
Wilson height (sopfr(nd))	35
Harmonic entropy (Shannon, [math]\sqrt{nd}[/math])	~4.33859 bits
Comma size	medium
S-expression	S82 × S9
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256/245, the bapbo comma, is the amount by which two 8/7s exceed a 5/4, thus is the stack of two 64/63's and one 81/80. It exceeds 25/24 by 6144/6125 and 24/23 by 736/735. It also falls short of 256/243 by 245/243 and of 21/20 by 1029/1024.

See also

• Bapbo clan
• Medium comma