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Interval information
Ratio 64/33
Factorization 26 × 3-1 × 11-1
Monzo [6 -1 0 0 -1
Size in cents 1146.7271¢
Names undecimal infraoctave,
Alpharabian infraoctave,
octave-reduced 33rd subharmonic
Color name 1u8, lu octave
FJS name [math]\text{P8}_{11}[/math]
Special properties reduced
Tenney height (log2 nd) 11.0444
Weil height (log2 max(n, d)) 12
Wilson height (sopfr (nd)) 26
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.70522 bits

[sound info]
open this interval in xen-calc

64/33, the undecimal infraoctave, the Alpharabian infraoctave or the octave-reduced 33rd subharmonic, is an interval which differs by a keenanisma (385/384) from the septimal semidiminished octave (35/18).

See also