2430/2401

2430/2401, the nuwell comma, 20.8 cents is a small, 7-limit comma. It is amount by which four septimal minor thirds 7/6 fall short of a major seventh 15/8. Tempering it out leads to the nuwell family of temperaments.

Interval information

Ratio	2430/2401
Factorization	2 × 35 × 5 × 7-4
Monzo	[1 5 1 -4⟩
Size in cents	20.78509¢
Name	nuwell comma
FJS name	[math]\displaystyle{ \text{dd}{-3}^{5}_{49,49} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	22.4762
Weil norm (log2 max(n, d))	22.4935
Wilson norm (sopfr(nd))	50
Open this interval in xen-calc

See also

• Comma
• Small comma