72/49

Interval information

Ratio

72/49

Factorization

2³ × 3² × 7^-2

[3 2 0 -2⟩

Size in cents

666.2582¢

Names

(greater) septimal subfifth,
arabic lute grave fifth

rr4, ruru 4th

[math]\displaystyle{ \text{A4}_{7,7} }[/math]

Special properties

11.7846

Weil height (log₂ max(n, d))

12.3399

26

Harmonic entropy
(Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])

~4.32191 bits

72/49, the arabic lute grave fifth, is 540/539 (3.2 cents) sharp of 22/15, and is the interval between 7/6 and 12/7.

This interval is especially near the 5th step of 9edo.

This interval can possibly be classified as a wolf 5th, it is recognizable as an out-of-tune 5th rather than a tritone.

See also