49/25

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Interval information
Ratio 49/25
Factorization 5-2 × 72
Monzo [0 0 -2 2
Size in cents 1165.0244¢
Name BP eighth
Color name zzgg9, bizogu 9th
FJS name [math]\text{d9}^{7,7}_{5,5}[/math]
Special properties reduced
Tenney height (log2 nd) 10.2586
Weil height (log2 max(n, d)) 11.2294
Wilson height (sopfr (nd)) 24
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~4.43888 bits
open this interval in xen-calc

The BP eighth, 49/25, is an interval approximated by many notable tunings, including but not limited to Bohlen-Pierce, 27edo, 34edo, 53edo and 72edo. As a stack of two diminished fifths 7/5, it can be thought of as a diminished 9th.