part combiner

[kristof]

Hi,

I finished the scheme part of the part-combiner.  Attached is the patch.
There are still bugs in the C part which I cannot solve:

- When there are two voices unisilence, one of them a multimeasure rest,
and the other a smaller rest, than sometimes the multimeasure rest
swallows the other, with the result that there appears a gap before the
first note.

- Sometimes slur-events are swallowed, so a slur appears to have no end.

- Multimeasure rests are not positioned according to their voice, but
always appear in the middle.

I would solve these problems myself if I could, but it would take to much
time with my limited understanding of lilypond internals.

Kristof Bastiaensen

Changelog:
 2005-07-07  Kristof Bastiaensen  <address@hidden>

        * ly/declarations-init.ly: Set the properties to record for the
        part-combiner.

        * scm/part-combiner.scm: Complete rewrite of the part-combiner.

        * lily/moment-scheme.cc: Added the scheme function ly:sub-moment
        to subtract moments.

        * lily/recording-group-engraver.cc: Added the possibility to
        record properties by putting their name in the recordProperties
        property.

lily.patch
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