38/21

From Xenharmonic Wiki
Jump to navigation Jump to search
Interval information
Ratio 38/21
Factorization 2 × 3-1 × 7-1 × 19
Monzo [1 -1 0 -1 0 0 0 1
Size in cents 1026.7321¢
Names hendrix minor seventh,
undevicesimal supraminor seventh,
undevicesimal subneutral seventh
Color name 19or7, noru 7th
FJS name [math]\text{m7}^{19}_{7}[/math]
Special properties reduced
Tenney height (log2 nd) 9.64024
Weil height (log2 max(n, d)) 10.4959
Wilson height (sopfr (nd)) 31
Harmonic entropy
(Shannon, [math]\sqrt{n\cdot d}[/math])
~4.56998 bits

[sound info]
open this interval in xen-calc

In 19-limit just intonation, 38/21 is the hendrix minor seventh, also known as the undevicesimal supraminor seventh or undevicesimal subneutral seventh. It exceeds the Pythagorean minor seventh (16/9) by a hendrix comma (57/56).

See also