4/3: Difference between revisions

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{{Infobox Interval
{{Infobox Interval
| JI glyph = [[File:perfect_fourth.png|x48px]]
| Ratio = 4/3
| Ratio = 4/3
| Monzo = 2 -1
| Monzo = 2 -1

Revision as of 02:40, 12 April 2021

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