85/84

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Interval information
Ratio 85/84
Factorization 2-2 × 3-1 × 5 × 7-1 × 17
Monzo [-2 -1 1 -1 0 0 1
Size in cents 20.488216¢
Name monk comma
Color name 17ory1, soruyo 1sn,
Soruyo comma
FJS name [math]\text{P1}^{5,17}_{7}[/math]
Special properties superparticular,
reduced
Tenney height (log2 nd) 12.8017
Weil height (log2 max(n, d)) 12.8188
Wilson height (sopfr (nd)) 36
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~3.73124 bits
Comma size small
S-expression S15 × S16 × S17
open this interval in xen-calc

85/84, the monk comma, is a 17-limit superparticular interval. It is the difference between 6/5 and 17/14, as well as 7/5 and 17/12.

Etymology

The word monk for this comma was introduced by Xenllium in 2023. It was translated from Japanese word 僧侶 (そうりょ, sōryo), a play of its color name, soruyo (as resembling pronunciation).

See also