[abcusers] quarter tones (non-12 tone music)

[Jeff Senn]

I'm a newcomer here.  Has the issue of non-12 tone music come up here 
before?
I don't see anything in the pending standard about it...

A lot of middle eastern (Turkish, Arabic, Persian, etc...) music is 
based
on a quarter-tone (24 division) system; or in the case of some Turkish
music up to 48 (or even more) divisions of the octave.  This is 
typically squeezed into
the western system by using half-flats and half-sharps in the key 
signature
and as accidentals.

Also typically the key signature is written with an arbitrary number of
flats/sharps/half-flats/half-sharps in it to represent the 
(non-western) mode.

I recently snagged a copy of John Chambers's jcabc2ps so I could print 
some
tunes and modified it for my purposes.  The 'quick hack' I used was to
use "^/" and "_/" to represent half-sharps and flats -- thinking that 
later
a real fraction can be used to do more-than-24 tone music.  e.g. "^3/48"

-Jas



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