Minor seventh chord: Difference between revisions
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{{Wikipedia}} | {{Wikipedia|Minor seventh chord}} | ||
A '''minor seventh chord''' is a [[tetrad]] comprising a root, a [[minor]] third, a [[perfect]] fifth, and a minor seventh. | 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]]: | In the [[5-limit]]: | ||
* [[10:12:15:18]] is found on the iii ({{Frac|5|4}}) and vi ({{Frac|5|3}}) of Ptolemy's intense diatonic scale ([[Zarlino]]), perhaps the most common 5-limit diatonic. | * [[10:12:15:18]] is found on the iii ({{Frac|5|4}}) and vi ({{Frac|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 ({{Frac|9|8}}) of Ptolemy's intense diatonic scale. | * [[27:32:40:48]] is found on the ii ({{Frac|9|8}}) of Ptolemy's intense diatonic scale. | ||
In the [[3-limit]]: | |||
* [[54:64:81:96]] is found on the ii ({{Frac|9|8}}), iii ({{Frac|81|64}}), and vi ({{Frac|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. | |||
[[Category:Minor seventh chords| ]] | [[Category:Minor seventh chords| ]] | ||
[[Category:Just intonation chords]] | [[Category:Just intonation chords]] | ||
Latest revision as of 10:08, 28 October 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.