91/64

Interval information

Ratio	91/64
Factorization	2-6 × 7 × 13
Monzo	[-6 0 0 1 0 1⟩
Size in cents	609.3536¢
Name	larger huntmic tritone octave-reduced 91st harmonic
Color name	thozo 5th
FJS name	[math]\displaystyle{ \text{d5}^{91} }[/math]
Special properties	reduced, reduced harmonic
Tenney norm (log2 nd)	12.5078
Weil norm (log2 max(n, d))	13.0156
Wilson norm (sopfr(nd))	32
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91/64 is the larger huntmic tritone or octave-reduced 91st harmonic, measuring about 609.4¢. It is 640/637 (huntma, about 8.13¢) flat of 10/7, or 4096/4095 (schismina, about 0.42¢) flat of 64/45. Its inversion is the smaller huntmic tritone, or 91th subharmonic 128/91, and the interval that separates them is the small comma 8281/8192, about 18.7¢.

See also

• 128/91 – its octave complement
• Gallery of just intervals