4/3: Difference between revisions

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== See also ==
== See also ==
* [[Gallery of just intervals]]
 
* [[3/2]] – its [[octave complement]]
* [[3/2]] – its [[octave complement]]
* [[9/8]] – its [[fifth complement]]
* [[9/8]] – its [[fifth complement]]
* [[Gallery of just intervals]]
* [[Wikipedia:Perfect_fourth|Perfect fourth - Wikipedia]]
* [[Wikipedia:Perfect_fourth|Perfect fourth - Wikipedia]]



Revision as of 15:22, 27 September 2020

Interval information
Ratio 4/3
Factorization 22 × 3-1
Monzo [2 -1
Size in cents 498.045¢
Name just perfect fourth
Color name w4, wa 4th
FJS name [math]\displaystyle{ \text{P4} }[/math]
Special properties square superparticular,
reduced,
reduced subharmonic
Tenney norm (log2 nd) 3.58496
Weil norm (log2 max(n, d)) 4
Wilson norm (sopfr(nd)) 7

[sound info]
Open this interval in xen-calc

4/3 is the frequency ratio of the just perfect fourth. Its inversion is the perfect fifth, 3/2.

See also