128/99

Interval information

Ratio

128/99

Factorization

2⁷ × 3^-2 × 11^-1

Monzo

[7 -2 0 0 -1⟩

Size in cents

444.7721¢

Names

undecimal subfourth,
minor fourth,
Alpharabian paraminor fourth,
just paraminor fourth

FJS name

[math]\displaystyle{ \text{P4}_{11} }[/math]

Special properties

reduced,
reduced subharmonic

Tenney height (log₂ nd)

13.6294

Weil height (log₂ max(n, d))

14

Wilson height (sopfr(nd))

31

Open this interval in xen-calc

In 11-limit just intonation, 128/99 is an undecimal subfourth measuring about 444.8¢. It is the inversion of 99/64, the undecimal superfifth. This interval is also known as the minor fourth, and can additionally be somewhat similarly dubbed the Alpharabian paraminor fourth or even the just paraminor fourth. It is distinguished from the simpler 22/17 by the twosquare comma.

This interval is especially close to the 10th step of 27edo.

128/99

See also