27/1

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Interval information
Ratio 27/1
Factorization 33
Monzo [0 3
Size in cents 5705.865¢
Name 27th harmonic
Color name c4w6
quadcowa 6th
FJS name [math]\text{M34}[/math]
Special properties harmonic
Tenney height (log2 nd) 4.75489
Weil height (log2 max(n, d)) 9.50978
Wilson height (sopfr (nd)) 9
Harmonic entropy
(Shannon, [math]\sqrt{nd}[/math])
~2.12236 bits
open this interval in xen-calc

27/1, the 27th harmonic, is the harmonic past 26/1 and before 28/1. It is about four octaves and nine semitones in size. Used in harmony, it sounds particularly wide: if the base note is F1, the higher note will be about D6. That is for all practical purposes beyond the range of choral music. However, it can be approached as a stack of three 3/1's, making chords like 1-3-9-27.

See also