32768/19683: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| Name = Threerish diminished seventh, Pythagorean diminished seventh
| Name = Pythagorean diminished seventh
| Color name = sw7, sawa 7th
| Color name = sw7, sawa 7th
}}
}}

Latest revision as of 11:52, 27 September 2025

Interval information
Ratio 32768/19683
Factorization 215 × 3-9
Monzo [15 -9
Size in cents 882.405¢
Name Pythagorean diminished seventh
Color name sw7, sawa 7th
FJS name [math]\displaystyle{ \text{d7} }[/math]
Special properties reduced,
reduced subharmonic
Tenney norm (log2 nd) 29.2647
Weil norm (log2 max(n, d)) 30
Wilson norm (sopfr(nd)) 57
Open this interval in xen-calc

The Pythagorean diminished seventh, 32768/19683, may be reached by stacking nine 4/3's and octave reducing. It differs from the classic major sixth, 5/3, by the schisma, and, as a result, the Pythagorean diminished seventh is useful in creating rather consonant diminished seventh chords.

See also