Historisma

Interval information

Ratio	257298363/256000000
Factorization	2-14 × 37 × 5-6 × 76
Monzo	[-14 7 -6 6⟩
Size in cents	8.758162¢
Name	historisma
Color name	latribizogu 4th, Lz6g64
FJS name	[math]\displaystyle{ \text{dddd4}^{7,7,7,7,7,7}_{5,5,5,5,5,5} }[/math]
Special properties	reduced
Tenney height (log2 nd)	55.8704
Weil height (log2 max(n, d))	55.8777
Wilson height (sopfr(nd))	121
Comma size	small
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257298363/256000000, the historisma, is a 5-limit comma. It is the difference between a stack of six septimal chromatic semitones (25/24) and a perfect fourth (4/3). Tempering it out along with leads to the 7-limit History temperament.

The hypovishnuzma, the difference between six 25/24 chromatic semitones and 4/3, can be considered the historisma's 5-limit counterpart. 43edo is notable for tempering out both, as it supports septimal meantone which equates 25/24 with 21/20.

See also

• Gallery of just intervals