Minor seventh chord: Difference between revisions
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== In just intonation == | == In just intonation == | ||
In the [[7-limit]]: | |||
* [[12:14:18:21]], the ''subminor seventh chord'', is a [[9-odd-limit]] chord that tunes both the third and the seventh flatter than the 5-limit minor. | |||
In the [[5-limit]]: | In the [[5-limit]]: | ||
Revision as of 03:44, 15 August 2024
A minor seventh chord is a tetrad comprising a root, a minor third, a perfect fifth, and a minor seventh.
In just intonation
In the 7-limit:
- 12:14:18:21, the subminor seventh chord, is a 9-odd-limit chord that tunes both the third and the seventh flatter than the 5-limit minor.
In the 5-limit:
- 10:12:15:18 is found on the iii (5⁄4) and vi (5⁄3) of Ptolemy's intense diatonic scale (Zarlino), perhaps the most common 5-limit diatonic.
- 27:32:40:48 is found on the ii (9⁄8) of Ptolemy's intense diatonic scale.
In the 3-limit:
- 54:64:81:96 is found on the ii (9⁄8), iii (81⁄64), and vi (27⁄16) of the Pythagorean diatonic scale, and may be considered a 3-limit approximation of both 10:12:15:18 and 27:32:40:48.