127/72: Difference between revisions
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Contribution (talk | contribs) Created page with "{{Infobox Interval | Ratio = 127/72 | Monzo = -3,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 | Cents = 982.511622396 | Name = harmonic/pythagorean minor seven..." |
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| Monzo = -3,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 | | Monzo = -3,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 | ||
| Cents = 982.511622396 | | Cents = 982.511622396 | ||
| Name = harmonic/ | | Name = harmonic/Pythagorean minor seventh meantone | ||
| Color name = 127o7 | | Color name = 127o7 | ||
}} | }} | ||
Revision as of 13:41, 12 June 2020
| Interval information |
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.
Its factorization into primes is 2-3⋅3-2⋅127; its FJS name is m7127.