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Interval information
Ratio 64/55
Factorization 26 × 5-1 × 11-1
Monzo [6 0 -1 0 -1
Size in cents 262.36834¢
Name keenanismic subminor third
Color name 1ug3, lugu 3rd
FJS name [math]\text{m3}_{5,11}[/math]
Special properties reduced
Tenney height (log2 nd) 11.7814
Weil height (log2 max(n, d)) 12
Wilson height (sopfr (nd)) 28
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.55011 bits

[sound info]
open this interval in xen-calc

64/55, the keenanismic subminor third, is 385/384 (4.5 cents) flatter than 7/6. It arises in 11-limit scales as the interval between 5/4 and 16/11, and between 11/8 and 8/5. On account of its close resemblance to 7/6, it can be stacked on top of a 5/4 major third as a means of creating one of the least dissonant among triads with a 16/11 subfifth as the outside interval.

See also