11/5

Interval information

Ratio	11/5
Factorization	5-1 × 11
Monzo	[0 0 -1 0 1⟩
Size in cents	1365.004¢
Name	neutral ninth
Color name	1o9, ilo 9th
FJS name	[math]\displaystyle{ \text{m9}^{11}_{5} }[/math]
Tenney norm (log2 nd)	5.78136
Weil norm (log2 max(n, d))	6.91886
Wilson norm (sopfr(nd))	16
[sound info]
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11/5 is the ratio between the 5th and 11th harmonics; one octave above 11/10. It is the all-odd voicing of 11/10 and thus the most consonant voicing.

11/5 is useful as an equivalence interval for "no-twos-or-threes" music as 5/1 proves too wide.

See also

• Ed11/5