27/14

Interval information

Ratio	27/14
Factorization	2-1 × 33 × 7-1
Monzo	[-1 3 0 -1⟩
Size in cents	1137.039¢
Names	septimal major seventh, supermajor seventh
Color name	r7, ru 7th
FJS name	[math]\displaystyle{ \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
[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.

See also

• 28/27 – its octave complement
• 14/9 – its twelfth complement
• Gallery of just intervals