67/64

Interval information

Ratio	67/64
Subgroup monzo	2.67 [-6 1⟩
Size in cents	79.30703¢
Names	mango second, octave-reduced 67th harmonic
Color name	67o2, siso second
FJS name	[math]\displaystyle{ \text{m2}^{67} }[/math]
Special properties	reduced, reduced harmonic
Tenney norm (log2 nd)	12.0661
Weil norm (log2 max(n, d))	12.1322
Wilson norm (sopfr(nd))	79
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67/64, the mango second, is the octave-reduced 67th harmonic. It is close to the 15edo interval of 80 ¢.

Etymology

This interval was named by JudeMason in 2025. Despite the name, the origin has nothing to do with the fruit itself. It's the 67th harmonic, what else would it be called?

See also

• Gallery of just intervals