music-cause

[David Kastrup]

Anybody actually using the "music-cause"?  Inside of LilyPond, the only
appearance (apart from its declaration) would be

  /*
    ES TODO: This is a temporary fix. Stream_events should not be
    aware of music.
  */
  e->set_property ("music-cause", self_scm ());

It would likely have some minor benefits in memory usage if this would
be retired since the music events could be garbage collected after
conversion to stream events.  It is also conceptually cleaner.

-- 
David Kastrup