7-39-comma

Interval information

Ratio	137438953472/137231006679
Factorization	237 × 3-7 × 13-7
Monzo	[37 -7 0 0 0 -7⟩
Size in cents	2.621362 ¢
Name	7-13-comma
Color name	Sasa-septhu comma
FJS name	[math]\displaystyle{ \text{AAA1}_{13,13,13,13,13,13,13} }[/math]
Special properties	reduced, reduced subharmonic
Tenney norm (log2 nd)	73.9978
Weil norm (log2 max(n, d))	74
Wilson norm (sopfr(nd))	186
Comma size	unnoticeable
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137438953472/137231006679, the 7-13-comma, is a 13-limit unnoticeable comma of about 2.62 ¢. It is the amount by which a stack of of 39/32's fall short of two octaves.