26/25

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Interval information
Ratio 26/25
Factorization 2 × 5-2 × 13
Monzo [1 0 -2 0 0 1
Size in cents 67.900234¢
Name large tridecimal third tone
Color name 3ogg2, thogugu 2nd
FJS name [math]\text{d2}^{13}_{5,5}[/math]
Special properties superparticular,
reduced
Tenney height (log2 nd) 9.3443
Weil height (log2 max(n, d)) 9.40088
Wilson height (sopfr (nd)) 25
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.73429 bits
Comma size medium

[sound info]
open this interval in xen-calc

In 13-limit just intonation, 26/25, the large tridecimal third tone appears as the difference between the 26th and 25th harmonics. Thus it makes the difference between 13/8 and 25/16 (a stack of two 5/4's). If it is treated as a comma, then 5/4 and 13/10 both collapse to a Neogothic-flavored major third in between them representing half of 13/8. It measures about 67.9¢.

Approximation

26/25 is very well approximated in 53edo, being only 0.024 ¢ flat of 3\53.

See also