9/4
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Ratio | 9/4 |
Factorization | 2-2 × 32 |
Monzo | [-2 2⟩ |
Size in cents | 1403.91¢ |
Name | Pythagorean ninth |
Color name | w9, wa 9th |
FJS name | [math]\text{M9}[/math] |
Tenney height (log2 nd) | 5.16993 |
Weil height (log2 max(n, d)) | 6.33985 |
Wilson height (sopfr (nd)) | 10 |
Harmonic entropy (Shannon, [math]\sqrt{n\cdot d}[/math]) |
~4.52203 bits |
[sound info] | |
open this interval in xen-calc |
9/4, the Pythagorean ninth; two perfect fifths (3/2 * 3/2); the ratio between the 4th and 9th harmonics; one octave above 9/8.