13/6

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Interval information
Ratio 13/6
Factorization 2-1 × 3-1 × 13
Monzo [-1 -1 0 0 0 1
Size in cents 1338.5727¢
Name tridecimal minor ninth
Color name 3o9, tho 9th
FJS name [math]\text{m9}^{13}[/math]
Tenney height (log2 nd) 6.2854
Weil height (log2 max(n, d)) 7.40088
Wilson height (sopfr (nd)) 18
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~4.21219 bits

[sound info]
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The ratio between the 6th and 13th harmonics; one octave above 13/12.