11/6
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| Ratio | 11/6 |
| Monzo | |-1 -1 0 0 1> |
| Size | 1049.3629 ¢ |
| Name(s) | undecimal neutral seventh |
| File:Jid 11 6 pluck adu dr220.mp3 [sound info] | |
11/6 is the undecimal neutral seventh of about 1049.4 cents. It can be treated as a consonance in 11-limit harmony, forming a part of such chords as 6:7:9:11 (1-7/6-3/2-11/6) and the neutral tetrad 18:22:27:33 (1-11/9-3/2-11/6).
Coincidentally, the ratio between the most common musical tuning frequency (A440) and the most common electrical AC frequency (60hz) is an 11/6, but two octaves up.