27:32:40:48: Difference between revisions
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mention connection to simpler minor seventh in meantone |
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'''27:32:40:48''' is a [[minor seventh chord]] found on the ii ({{Frac|5|4}}) of Ptolemy's intense diatonic scale ([[Zarlino]]), perhaps the most common 5-limit diatonic. | '''27:32:40:48''' is a [[minor seventh chord]] found on the ii ({{Frac|5|4}}) of Ptolemy's intense diatonic scale ([[Zarlino]]), perhaps the most common 5-limit diatonic. | ||
It is the only seventh chord in | It is the only seventh chord in Ptolemy's intense diatonic scale to contain both a [[40/27]] ''grave fifth'' and a [[3/2]] ''perfect fifth''. | ||
The [[meantone]] tuning of this chord is equivalent to the meantone tuning of [[10:12:15:18]]. | The [[meantone]] tuning of this chord is equivalent to the meantone tuning of [[10:12:15:18]]. | ||
[[Category:Minor seventh chords|##]] | [[Category:Minor seventh chords|##]] | ||
Revision as of 07:11, 31 August 2024
| Chord information |
27:32:40:48 is a minor seventh chord found on the ii (5⁄4) of Ptolemy's intense diatonic scale (Zarlino), perhaps the most common 5-limit diatonic.
It is the only seventh chord in Ptolemy's intense diatonic scale to contain both a 40/27 grave fifth and a 3/2 perfect fifth.
The meantone tuning of this chord is equivalent to the meantone tuning of 10:12:15:18.