63/40

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Interval information
Ratio 63/40
Factorization 2-3 × 32 × 5-1 × 7
Monzo [-3 2 -1 1
Size in cents 786.42219¢
Name narrow minor sixth
Color name zg6, zogu 6th
FJS name [math]\text{m6}^{7}_{5}[/math]
Special properties reduced
Tenney height (log2 nd) 11.2992
Weil height (log2 max(n, d)) 11.9546
Wilson height (sopfr (nd)) 24
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~4.22357 bits
open this interval in xen-calc

The narrow minor sixth (frequency ratio 63/40) is a 7-limit interval which is well approximated in several equal step tunings, most notably 198edo.