Joseph Pehrson's _Verklaerte Neunzehn_ in Tuning 1: "A septimal interpretation of 19 out of 31 tones as revised by Manuel Op de Coul."
alternate tuning
This is a tuning test of the beginning of a piece with various 19-tone tunings.
These tunings are realized using Manuel Op de Coul's "Scala" computer program, which can tune, in this case, a Yamaha TX81Z synthesizer. These extracts are from a new piece "Verklarte Neunzehn." The extracts are about the first 45 seconds of the piece. The first tuning is using "A septimal interpretation of 19 out of 31 tones as revised by Manuel Op de Coul."
Manuel de Coul's improvement on 19-31ji.scl
0: 1/1 0.000 unison, perfect prime
1: 135/128 92.179 major limma, large chroma
2: 15/14 119.443 major diatonic semitone
3: 9/8 203.910 major whole tone
4: 7/6 266.871 septimal minor third
5: 135/112 323.353
6: 5/4 386.314 major third
7: 21/16 470.781 narrow fourth
8: 4/3 498.045 perfect fourth
9: 45/32 590.224 tritone
10: 10/7 617.488 Euler's tritone
11: 3/2 701.955 perfect fifth
12: 14/9 764.916 septimal minor sixth
13: 45/28 821.398
14: 5/3 884.359 major sixth
15: 7/4 968.826 harmonic seventh
16: 16/9 996.090 Pythagorean minor seventh
17: 15/8 1088.269 classic major seventh
18: 63/32 1172.736 octave - septimal comma
19: 2/1 1200.000 octave
