Tuning files

I have placed binhex 4.0 encoded, compressed ascii files of most of
my JiCalc scale archives in the Mills ftp site (in the CCM mac
software directory along with JiCalc). JiCalc 4.2 runs under Hypercard
2.0 or above on the Mac. It is shareware and is available both from
the Mills ftp site and from the Just Intonation Network. Hypercard
readers do not appear to support all of the JiCalc functions, so the
HC 2.X application is essential to use these files.

The files are JCA.sit.hqx, JCB.sit.hqx, JCC.sit.hqx, TC.sit.hqx and
a short non-binhex encoded readme file, JC/TC_README. The files may be
uncompressed and decoded with Expander, Unstuffit or similar programs.

JCA and JCB have 400 tunings each and JCC 396. The TC file has 590
entries, most of them from my book, "Divisions of the Tetrachord."
The uncompressed and decoded files may be read with any word processor
or inserted into a JiCalc stack with the READALL command. I recommend
using multiple stacks renamed for each file, at least on the older,
slower Mac's.

The scales are a mixture of JI, tetrachordal, CPS, tritriadic, tempered,
McLarenish, etc. and are not always fully documented as they represent
various research interests of mine over the last 8 or 9 years. Because
some early versions of JiCalc did not permit one to annotate entries,
some entries are rather cryptic. However, I think most will be of
interest to at least some of the Tuning List readers.

In JiCalc, all scales, equally-tempered, non-octaval, non-Just, non-ET,
etc. must be expressed as ratios, either exact or approximate in the
case of tempered or other irrational intervals. The approximations are
usually within 0.1 cent and were generated by the use of Carter Scholz's algorithm or by Viggo Brun's version of the well-known Euclidean algorithm
for approximating irrationals.

These four files contain more or less the same tunings as Manuel Op de
Coul's SCALA, though in a different format as his program can combine
cents with ratios. This resemblance is not entirely accidental; Manuel
and I have been exchanging scales by email. His program, however, is more
than just a tuning editor.

JiCalc may be used to tune a number of popular synthesizers, particularly
those made by Yamaha and Ensoniq. Full-keyboard tuning is supported and
scales do not have to repeat at the octave (or at all). Adding new scales
to JiCalc is easy and the program comes with a very good help file.


--John

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The Interval Foundation was headed up by Jonathan and Elizabeth Glasier.
Last I heard, their ph# was (609) 238-3593.


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Gary and John C.:

Thanks for the info about back issues of Interval. I will attempt to
contact Jonathan Glasier directly; however, making them available through
Frog Peak Music sounds like an excellent idea.

John

---
John G. Pusey
xen@tiac.net



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