109-7-comma
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Factorization
2-306 × 7109
Monzo
[-306 0 0 109⟩
Size in cents
2.023805¢
Name
109-7-comma
Color name
L16z10939
Special properties
reduced,
reduced harmonic
Tenney height (log2 nd)
612.002
Weil height (log2 max(n, d))
612.003
Wilson height (sopfr(nd))
1375
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~1.23724 bits
Comma size
unnoticeable
open this interval in xen-calc
Interval information |
reduced harmonic
(Shannon, [math]\sqrt{nd}[/math])
109-7-comma is the interval which represents a closed circle of 109 7th harmonics with 306 octaves, or alternately, 109 7/4 septimal minor sevenths with the octave. It is notable because of 109edo being a denominator to semiconvergent for log27.
Temperaments
Tempering it out maps 7/4 into 88\109, that is 88 steps of 109edo. Aside from 109edo, it is tempered out by high-limit systems such as 436edo and 981edo.