Major seventh chord: Difference between revisions
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{{Wikipedia}} | {{Wikipedia|Major seventh chord}} | ||
A '''major seventh chord''' is a [[tetrad]] comprising a root, [[major]] third, [[perfect]] fifth, and major seventh. | A '''major seventh chord''' is a [[tetrad]] comprising a root, [[major]] third, [[perfect]] fifth, and major seventh. | ||
== | == In just intonation == | ||
In the [[5-limit]]: | In the [[5-limit]]: | ||
* [[8:10:12:15]] is found on on the I ({{Frac|1|1}}) and IV ({{Frac|4|3}}) of Ptolemy's intense diatonic scale ([[Zarlino]]), perhaps the most common [[5-limit]] diatonic. | * [[8:10:12:15]] is found on on the I ({{Frac|1|1}}) and IV ({{Frac|4|3}}) of Ptolemy's intense diatonic scale ([[Zarlino]]), perhaps the most common [[5-limit]] diatonic. | ||
In the [[3-limit]]: | |||
* [[128:162:192:243]] spans five octave-reduced fifths, and may be considered a 3-limit approximation of 8:10:12:15. | |||
[[Category:Major seventh chords| ]] | [[Category:Major seventh chords| ]] | ||
[[Category:Just intonation chords]] | [[Category:Just intonation chords]] | ||
Latest revision as of 10:16, 27 October 2024
A major seventh chord is a tetrad comprising a root, major third, perfect fifth, and major seventh.
In just intonation
In the 5-limit:
- 8:10:12:15 is found on on the I (1⁄1) and IV (4⁄3) of Ptolemy's intense diatonic scale (Zarlino), perhaps the most common 5-limit diatonic.
In the 3-limit:
- 128:162:192:243 spans five octave-reduced fifths, and may be considered a 3-limit approximation of 8:10:12:15.