Definitions of tuning terms
© 1998 by Joseph L. Monzo
All definitions by Joe Monzo unless otherwise cited
Duodene
A tonal lattice
with 12 nodes invented by A. J. Ellis as a
model for the 12-tone chromatic scale in
Just Intonation.
It consists
of a chain of four Perfect fifths (F to D) and a three Major Thirds above
and below each of these pitch tones.
Analogs may be constructed by
replacing the 3/2 and 5/4's with other intervals.
[from John Chalmers, Divisions of the Tetrachord]
.............................. Perhaps this is nitpicking, but I would call Ellis's
Duodene a matrix rather than a lattice.
This construction was the original inspiration
for my own matrices, as published in
my initial paper.
I have since modified my design to a lattice.
[- Monzo]
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