Hello.
I would like to recall the microtonal subject again.
As far as I know, abc2midi is the only abc converter which outputs
playable (is there this word?) microtonal files. (Maybe it is not
difficult changing jcabc2ps to create microtonal audio files. Is John
Chambers in this mailing list?)
abcMIDI uses microtones not as acidentals, but more like decorations
(pitch bend). So, there are some questions.
Quoting the file abcmidi/doc/CHANGES:
<<<<
"The microtone notation does not propogate across a measure but
applies to only the immediate note.
...
It is not clear whether the microtone
notation should be treated as an accidental or a decoration.
The abc2midi software treats it as a decoration. Thus in the
following:
X:1
T:micro
Q:60
K:C
=C ^/C ^C _/D D _/D ^C ^/C =C
the second to last note ^/C is played as ^^/C since the
accidental in the previous note propogates across the measure.
If you want =^/C you must specify it in this manner.
If ^/ and _/ satisfy the rules of accidentals then,
they would be interpreted the same way as double sharps and
double flats. Thus if you wrote ^^F E ^F G: the first note
would be played as G and the third note would be played as
F#. (You would not write ^^F E ^=F G.) It is not clear from
the abc standard, the meaning of the following:
[K: G] ^/F D E G|
Is the first note a F natural raised a quarter tone,
or is it a F# (as indicated by the key signature) raised
by a quarter tone? Presently abc2midi treats it as the
latter."
>>>>
I prefer use the microtonal symbols as if they were normal accidentals,
thus:
[K:F#] f ^^/f =g
is ascending, differently from:
[K:F#] f ^/f =g
What do you think of that?
--
Hudson Lacerda <http://geocities.yahoo.com.br/hfmlacerda/>
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