72
Appendix C: Alternative Tunings
Dave Smith Instruments
5. 1/4 Tone Equal Temperament
24 notes per octave, equally spaced 24root2 intervals. Mexican composer
Julian Carillo used this for custom-built pianos in the early 20th century.
6. 19 Tone Equal Temperament
19 notes per octave (19root2) offering better thirds than 12 ET, a better
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7. 31 Tone Equal Temperament
Many people consider 31root2 to offer the best compromise towards just
intonation in an equal temperament, but it can get very tricky to keep
track of the intervals.
8. Pythagorean C
One of the earliest tuning systems known from history, the Pythagorean
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down into a single octave. The tuning works well for monophonic melo-
GLHVDJDLQVW¿IWKGURQHVEXWKDVDYHU\QDUURZSDODWHRIJRRGFKRUGVWR
choose from. C=1/1 (261.625 Hz)
1/1 256/243 9/8 32/27 81/64 4/3 729/512 3/2 128/81 27/16 16/9 243/128
-XVW,QWRQDWLRQLQ$ZLWK/LPLW7ULWRQHDW'
A rather vanilla 5-limit small interval JI, except for a single 7/5 tritone
at D#, which offers some nice possibilities for rotating around bluesy
sevenths. A=1/1 (440 Hz) 1/1 16/15 9/8 6/5 5/4 7/5 3/2 8/5 5/3 9/5 15/8
10. 3-5 Lattice in A
A pure 3 and 5-limit tuning which resolves to very symmetrical derived
relationships between notes. A=1/1 (440 Hz)
1/1 16/15 10/9 6/5 5/4 4/3 64/45 3/2 8/5 5/3 16/9 15/8
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