30/19
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Ratio | 30/19 |
Subgroup monzo | 2.3.5.19 [1 1 1 -1⟩ |
Size in cents | 790.7557¢ |
Names | small undevicesimal minor sixth, Eratosthenes' minor sixth |
Color name | 19uy5, nuyo 5th |
FJS name | [math]\text{A5}^{5}_{19}[/math] |
Special properties | reduced |
Tenney height (log_{2} nd) | 9.15482 |
Weil height (log_{2} max(n, d)) | 9.81378 |
Wilson height (sopfr (nd)) | 29 |
Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~4.56829 bits |
[sound info] | |
open this interval in xen-calc |
30/19, the small undevicesimal minor sixth is a 19-limit interval, 790.8 cents in size. In the Functional Just System and Helmholtz-Ellis notation, it is an augmented fifth, obtained by subtracting 81/80 and 513/512 from the Pythagorean augmented fifth, but it may be called the Eratosthenes' minor sixth as it is flatter than the Pythagorean minor sixth by the password aka Eratosthenes' comma (1216/1215), an unnoticeable comma of about 1.4243 cents.
See also
- 19/15 – its octave complement
- 19/12 – the large undevicesimal minor sixth
- Gallery of just intervals