Neutral sixth
Thirteenth harmonic
13:8 (840.53 cents), the ratio of the thirteenth harmonic is notated in Ben Johnston's system as A13♭.
This note is often corrected to a just or pythagorean ratio on the natural horn, but the pure thirteenth harmonic was used in pieces including Britten's Serenade for tenor, horn and strings.[1]
See also
References
- ^ Fauvel, John; Flood, Raymond; and Wilson, Robin J. (2006). Music And Mathematics, p.21-22. ISBN 9780199298938.
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