125/72

125/72, the classic augmented sixth is 5-limit just interval of about 955 cent. It can be obtained by adding 5/3, the classic major sixth, by 25/24, the classic chroma. In any kleismic system, it is tuned to an exact semitwelfth, tempered together with 216/125.

Interval information

Ratio	125/72
Factorization	2-3 × 3-2 × 53
Monzo	[-3 -2 3⟩
Size in cents	955.0311¢
Name	classic augmented sixth
FJS name	[math]\displaystyle{ \text{A6}^{125} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	13.1357
Weil norm (log2 max(n, d))	13.9316
Wilson norm (sopfr(nd))	27
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Approximation

This interval is especially close to the 39th step of 49edo.

See also

• 144/125 – its octave complement
• Gallery of just intervals