40/29

In 29-limit just intonation, 40/29 is an ultrafourth. It is sharp of the perfect fourth (4/3) by 30/29 (~59 ¢).

Interval information

Ratio	40/29
Subgroup monzo	2.5.29 [3 1 -1⟩
Size in cents	556.7365¢
Name	narrow vicesimononal ultrafourth
Color name	29uy4, twenuyo 4th
FJS name	[math]\displaystyle{ \text{A4}^{5}_{29} }[/math]
Special properties	reduced
Tenney norm (log2 nd)	10.1799
Weil norm (log2 max(n, d))	10.6439
Wilson norm (sopfr(nd))	40
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See also

• 29/20 – its octave complement