> All of this is possible. Well almost. You'll have to put the oboe in
> one file, the piano in an other one, and have one more file for each
> combination you want to print : piano, oboe, piano+oboe. The later will
> just have to include the former.
Why do you need the separate files? You can have several
\score declarations in the same file. If you process it
with ly2dvi -s, they will be output to separate dvi files.
> However, it'd be nice to have option to ignore some parts of a
> score. For those of you who want to hack bbut don't know what to do :-)
I don't understand exactly what you are missing.
Block comments ( \{ ... \} ) is one solution. Or do you
want to be able to specify on the command line which
\score block(s) to process?
/Mats