21/19

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Interval information
Ratio 21/19
Factorization 3 × 7 × 19-1
Monzo [0 1 0 1 0 0 0 -1
Size in cents 173.26789¢
Name large neutral undevicesimal second
FJS name [math]\text{M2}^{7}_{19}[/math]
Special properties reduced
Tenney height (log2 n⋅d) 8.64024
Weil height (max(n, d)) 21
Benedetti height (n⋅d) 399
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.57186 bits

[sound info]
open this interval in xen-calc

21/19 is the large neutral undevicesimal second. Its octave complement is the minor neutral undevicesimal seventh 38/21.

See also