750/749

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This page presents a niche topic.

While not arbitrary, it may contain ideas whose practical applications in music are unknown or narrow in scope.

Niche topics are often developed by a single person or a small group. As such, this page may also contain idiosyncratic terms, notation, or conceptual frameworks.

Interval information
Ratio 750/749
Subgroup monzo 2.3.5.7.107 [1 1 3 -1 -1
Size in cents 2.309852¢
Name ancient Chinese tempering comma
Color name 107ury3-2
FJS name [math]\displaystyle{ \text{d}{-2}^{5,5,5}_{7,107} }[/math]
Special properties superparticular,
reduced
Tenney height (log2 nd) 19.0996
Weil height (log2 max(n, d)) 19.1015
Wilson height (sopfr(nd)) 134
Harmonic entropy
(Shannon, [math]\displaystyle{ \sqrt{nd} }[/math])
~1.24881 bits
Comma size unnoticeable
Open this interval in xen-calc

750/749 is a 107-limit superparticular interval measuring 2.31 cents. It is known as the ancient Chinese tempering comma. The perfect fifth of 12edo is approximated by 749/500 = 1.498 as frequency ratio, and thus can be approximated by flattening 3/2 by this comma.

See also