29/21

Interval information

Ratio	29/21
Subgroup monzo	3.7.29 [-1 -1 1⟩
Size in cents	558.7963¢
Name	Vicesimononal ultrafourth
Color name	29or4, twenoru 4th
FJS name	[math]\text{P4}^{29}_{7}[/math]
Special properties	reduced
Tenney height (log2 nd)	9.2503
Weil height (log2 max(n, d))	9.71596
Wilson height (sopfr(nd))	39
Harmonic entropy (Shannon, [math]\sqrt{nd}[/math])	~4.24497 bits
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In 29-limit just intonation, 29/21 is an ultrafourth. It is sharp of the perfect fourth (4/3) by 29/28 (~61 ¢).

See also

• 42/29 – its octave complement