I wouldn't be surprised if you could find some
program the took and existing MIDI file and added
the swing feeling to it. However, I agree that it could
be an interesting exercise in Scheme programming to
do it from within LilyPond.
/Mats
David Greene wrote:
Hi everyone,
I searched the archives and found a few discussions about
generating swing-feel MIDI from straight eighths Lily
source but the most recent was from 2004.
I was thinking about writing a Scheme function to carve
up all of the durations into units of eighths, inserting
the proper ties to maintain longer notes. Then I could
imagine altering the durations as appropriate to implement
the swing feel.
Can anyone give me an idea of the complexity of this?
I can imagine writing it in such a way that the "swing
bias" can be specified (e.g. triplet, quintuplet, etc.).
I know only as much Scheme as is covered in the 2.9.17
manual, which is to say, not much. What is the recommended
reference? SICP? I could do this in C++ with no problem,
but Scheme is a very different beast. I'm not at all sure
how to do complex data structure manipulation in it.
Might it be easier to do something with Perl or a similar
text-processing language to alter the Lily source directly?
It would be nice to have a music function that others could
share.
The main reason I want to do this is not to generate
perfect-sounding music but to be able to give a new
score and accompanying MIDI to people learning new stuff.
-Dave
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=============================================
Mats Bengtsson
Signal Processing
Signals, Sensors and Systems
Royal Institute of Technology
SE-100 44 STOCKHOLM
Sweden
Phone: (+46) 8 790 8463
Fax: (+46) 8 790 7260
Email: [EMAIL PROTECTED]
WWW: http://www.s3.kth.se/~mabe
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