351/343

Interval information

Ratio	351/343
Factorization	33 × 7-3 × 13
Monzo	[0 3 0 -3 0 1⟩
Size in cents	39.91494¢
Name	keladisma
Color name	Thotriru comma
FJS name	[math]\displaystyle{ \text{m}{-2}^{13}_{7,7,7} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	16.8774
Weil norm (log2 max(n, d))	16.9107
Wilson norm (sopfr(nd))	43
Comma size	medium
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351/343, the keladisma, is a no-twos 13-limit and 3.7.13 subgroup comma of about 40 cents. It can be defined as the difference between a stack of three 7/3 minor tenths and the 13th harmonic. Tempering this out in the 3.7.13 subgroup leads to the keladic temperament, generated by a sharp 7/3 or flat 9/7 against the tritave.

This comma is notably also tempered out in Minalzidar, the 3.7.11.13 extension of Mintaka, and in squad, a full 13-limit extension of squares.

Approximation

If treated as an interval in its own right, it is very close to 1 step of 30edo. It is tempered as such in the 13-limit zinc temperament.