21/19
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Ratio | 21/19 |
Factorization | 3 × 7 × 19^{-1} |
Monzo | [0 1 0 1 0 0 0 -1⟩ |
Size in cents | 173.26789¢ |
Names | hendrix major second, undevicesimal submajor second, undevicesimal supraneutral second |
Color name | 19uz2, nuzo 2nd |
FJS name | [math]\text{M2}^{7}_{19}[/math] |
Special properties | reduced |
Tenney height (log_{2} nd) | 8.64024 |
Weil height (log_{2} max(n, d)) | 8.78463 |
Wilson height (sopfr (nd)) | 29 |
Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~4.21455 bits |
[sound info] | |
open this interval in xen-calc |
In 19-limit just intonation, 21/19 is the hendrix major second, also known as the undevicesimal submajor second or undevicesimal supraneutral second. It falls short of the Pythagorean major second (9/8) by a hendrix comma (57/56).