Cheensma

Interval information

Ratio	41067/40960
Factorization	2-13 × 35 × 5-1 × 132
Monzo	[-13 5 -1 0 0 2⟩
Size in cents	4.516614¢
Name	cheensma
Color name	L3oog1, lathothogu unison
FJS name	[math]\displaystyle{ \text{d1}^{13,13}_{5} }[/math]
Special properties	reduced
Tenney height (log2 nd)	30.6476
Weil height (log2 max(n, d))	30.6514
Wilson height (sopfr(nd))	72
Comma size	small
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The cheensma is a 2.3.5.13-subgroup comma measuring about 4.5 ¢. Tempering only this comma out in the 2.3.5.13 subgroup yields the rank-3 cheen temperament, a restriction of full 13-limit zeus, splitting the grave fifth of ~40/27 into two ~39/32 neutral thirds of equal width. In the full 13-limit, tempering out only the cheensma leads to rank-5 cheensmic temperament. As this comma is the product of the keenanisma (385/384) and the chalmersia (123201/123200), its name is a portamenteau of the two, which was given by Tristan Bay in 2025.