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tunings and csound

Date1999-04-20 04:18
FromPrent Rodgers
Subjecttunings and csound
Nate,

I have been exploring Partch's 43 tone to the octave tonality diamond
using Csound for a few months now. I use a function table in my score
file like the following. I split it across several lines so it is easier
to read.

f3 0 64 -2 .0000000 .0021506 .0053273 .0084467 .0111731 .0150637
.0165004
.0182404 .0203910 .0231174 .0266871 .0294135 .0315641 .0347408 .0386314
.0417508
.0435084 .0470781 .0498045 .0519551 .0551318 .0582512 .0617488 .0648682
.0680449
.0701955 .0729219 .0764916 .0782492 .0813686 .0852592 .0884359 .0905865
.0933129
.0968826 .0996090 .1017596 .1034996 .1049363 .1088269 .1115533 .1146727
.1178494
.1200000

Then in the .orc file, I index into this table to select the proper
frequency like this:

ipitch   table   p5, 3            ; convert note number 1-43 to
oct.fract format
icps     =       cpspch(ioct+ipitch)  ; convert oct.fract to Hz

Then I can select any of the 43 tones with a note number (p5)  in the
score. I also have a separate octave number in the score, as recommended
by Michael Gogins.

For a complete picture of the orchestra and scores working together to
learn the tonality diamond, (shameless plug on again) see my web site:
http://pws.prserv.net/music1 or .mp3 example files at
http://www.mp3.com/PrentRodgers .

Prent Rodgers
Mercer Island, WA