Horwell comma

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Interval information
Ratio 65625/65536
Factorization 2-16 × 3 × 55 × 7
Monzo [-16 1 5 1
Size in cents 2.3494767¢
Name horwell comma
FJS name [math]\text{dd}{-2}^{5,5,5,5,5,7}[/math]
Special properties reduced,
reduced harmonic
Tenney height (log2 n⋅d) 32.002
Weil height (max(n, d)) 65625
Benedetti height (n⋅d) 4300800000
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~2.42238 bits
Comma size unnoticeable
open this interval in xen-calc

The horwell comma (ratio: 65625/65536, monzo: [-16 1 5 1) is a 7-limit comma measuring about 2.35 cents. It is the difference between 32/21, the septimal superfifth, and a stack of five 5/4's octave reduced.

Temperaments

Tempering out this comma leads to the horwell temperament, where 32/21 can be found through a stack of five 5/4's and octave reduction.

See also