143/128

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Interval information
Ratio 143/128
Factorization 2-7 × 11 × 13
Monzo [-7 0 0 0 1 1
Size in cents 191.8456¢
Name grossmic whole tone
Color name 3o1o2, tholo 2nd
FJS name [math]\text{m2}^{11,13}[/math]
Special properties reduced
Tenney height (log2 nd) 14.1599
Weil height (log2 max(n, d)) 14.3197
Wilson height (sopfr (nd)) 38
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.55818 bits
open this interval in xen-calc

143/128, the grossmic whole tone, is a 13-limit whole-tone-type interval of about 191.85 cents in size which separates 13/8 and 16/11 and likewise separates 16/13 from 11/8. It is represented near perfectly in edos that are a multiple of 25, and as those that are multiples of 50 also represent 11/8 and 13/8 within a fraction of a cent, they give it a consistent identity. It differs from 19/17 by 2432/2431, making tempering that out an excellent way of associating 13-limit intervals with simpler 19-limit ones. Two of them fall short of 5/4 by 20480/20449

See also