64/27: Difference between revisions

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This interval is a common ultrawide aspect ratio, often marketed as 21:9, which simplifies to [[7/3|7:3]]. 64/27 differs from 21/9 by [[64/63]], the septimal comma.
This interval is a common ultrawide aspect ratio, often marketed as 21:9, which simplifies to [[7/3|7:3]]. 64/27 differs from 21/9 by [[64/63]], the septimal comma.
[[4/3]] and [[16/9]] are also important aspect ratios.


== See also ==
== See also ==

Latest revision as of 20:45, 8 October 2026

Interval information
Ratio 64/27
Factorization 26 × 3-3
Monzo [6 -3⟩
Size in cents 1494.135 ¢
Name Pythagorean minor tenth
Color name w10, wa 10th
FJS name [math]\displaystyle{ \text{m10} }[/math]
Tenney norm (log2 nd) 10.7549
Weil norm (log2 max(n, d)) 12
Wilson norm (sopfr(nd)) 21
Open this interval in xen-calc

64/27 is the Pythagorean minor tenth. It is a stack of three perfect fourths, and is an octave larger than a pythagorean minor third.

Trivia

This interval is a common ultrawide aspect ratio, often marketed as 21:9, which simplifies to 7:3. 64/27 differs from 21/9 by 64/63, the septimal comma.

4/3 and 16/9 are also important aspect ratios.

See also