27/14
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| Ratio | 27/14 |
| Factorization | 2-1 × 33 × 7-1 |
| Monzo | [-1 3 0 -1⟩ |
| Size in cents | 1137.0391¢ |
| Names | septimal major seventh, supermajor seventh |
| Color name | r7, ru 7th |
| FJS name | [math]\text{M7}_{7}[/math] |
| Special properties | reduced |
| Tenney height (log2 nd) | 8.56224 |
| Weil height (log2 max(n, d)) | 9.50978 |
| Wilson height (sopfr(nd)) | 18 |
| Harmonic entropy (Shannon, [math]\sqrt{nd}[/math]) |
~4.29714 bits |
[sound info] | |
| open this interval in xen-calc | |
In 7-limit just intonation, 27/14 is the septimal major seventh or supermajor seventh. At about 1137 cents, it sounds much more tense than its classic counterpart 15/8 and thus provides the function of a strong leading tone added to the traditional harmony.
It is very accurately approximated by 19edo (18\19), and hence the enneadecal temperament.