127/72: Difference between revisions
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In [[just intonation]], 127/72 is the frequency ratio between the 127th and the 72th harmonic. | |||
It is the mean between the [[7/4|harmonic seventh]] and the [[16/9|Pythagorean minor seventh]]: (7/4 + 16/9)/2 = 127/72. | |||
It can also be calculated from the [[64/63|septimal comma]]: ((64/63 - 1)/2 + 1)⋅(7/4) = 127/72. | |||
{{Infobox Interval | {{Infobox Interval | ||
| Name = harmonic/Pythagorean minor seventh meantone | | Name = harmonic/Pythagorean minor seventh meantone | ||
| FJS name = m7^{127} | |||
| Color name = 127o7 | | Color name = 127o7 | ||
}} | }} | ||
Latest revision as of 04:31, 27 January 2024
In just intonation, 127/72 is the frequency ratio between the 127th and the 72th harmonic.
It is the mean between the harmonic seventh and the Pythagorean minor seventh: (7/4 + 16/9)/2 = 127/72.
It can also be calculated from the septimal comma: ((64/63 - 1)/2 + 1)⋅(7/4) = 127/72.
| Interval information |