16/9

Interval information

Ratio	16/9
Factorization	24 × 3-2
Monzo	[4 -2⟩
Size in cents	996.09¢
Name	Pythagorean minor seventh
Color name	w7, wa 7th
FJS name	[math]\displaystyle{ \text{m7} }[/math]
Special properties	reduced, reduced subharmonic
Tenney norm (log2 nd)	7.16993
Weil norm (log2 max(n, d))	8
Wilson norm (sopfr(nd))	14
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English Wikipedia has an article on:

Minor seventh

In 3-limit just intonation, 16/9 is the Pythagorean minor seventh, at about 996.1 cents. It is equal to two perfect fourths, or (4/3)×(4/3), and is thus the octave reduced form of the ninth subharmonic. It differs from the nearby 5-limit minor seventh 9/5 (~1017.6 cents) by the syntonic comma of 81/80 (~21.5 cents), and the 7-limit minor seventh 7/4 (~968.8 cents) by the septimal comma of 64/63 (~27.3 cents).

See also

• 9/8 – its octave complement
• Gallery of just intervals