Science Fair Project Encyclopedia
Minor seventh
The musical interval of a minor seventh the first note (the root or tonic) and the seventh in a minor scale. It is the inversion of the Major second. It is abbreviated as m7.
It can be produced by starting on a high note and playing the seventh below or by starting on a low note and playing the seventh above.
A minor seventh in just intonation most often corresponds to a pitch ratio of 9:5 or 1:1.8, or various other ratios, while in an equal tempered tuning it is a ratio of 1:210/12 (approximately 1.781), or 1000 cents, 17.596 cents shorter.
The minor seventh is considered the most dissonant interval after its inversion the Major second, the Major seventh, and the minor second.
See also:
| Minor seventh | ||||||
|---|---|---|---|---|---|---|
| # semitones | Interval class | # cents in equal temperament | Most common diatonic name | Comparable just interval | # cents in just interval | Just interval vs. equal-tempered interval |
| 10 | 2 | 1000 | minor seventh | 16:9 | 996 | 4 cents smaller |
External links
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details