Minor seventh chord: Difference between revisions
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reorder to describe the lower-odd-limit 5-limit chords first, and mention that the 3-limit chord approximates both. |
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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 [[5-limit]]: | In the [[5-limit]]: | ||
Revision as of 05:12, 14 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 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.