Undecimal octatonic comma

From Xenharmonic Wiki
(Redirected from 214990848/214358881)
Jump to navigation Jump to search
Interval information
Ratio 214990848/214358881
Factorization 215 × 38 × 11-8
Monzo [15 8 0 0 -8
Size in cents 5.096468¢
Name undecimal octatonic comma
Color name 1u82, quadbilu 2nd
FJS name [math]\text{AA2}_{11,11,11,11,11,11,11,11}[/math]
Special properties reduced
Tenney height (log2 nd) 55.3552
Weil height (log2 max(n, d)) 55.3594
Wilson height (sopfr(nd)) 142
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~1.4392 bits
Comma size small
open this interval in xen-calc

The undecimal octatonic comma, 214990848/214358881, is the amount by which a stack of eight 12/11 intervals exceeds the octave. Since it equates eight of one interval with an octave, it is tempered out if and only if the number of notes in the octave is a multiple of 8.

Temperaments

Tempering it out results in the octatonic temperament. For technical data see 8th-octave temperaments#Octatonic.