Comment #23 on issue 2584 by [email protected]: please make partcombine merge
slurs
http://code.google.com/p/lilypond/issues/detail?id=2584
Regarding comment 20:
If there is at least one implicit and one explicit, then only keep one
slur and issue a warning.
This case is not treated consistently in this patch since it makes its
decisions based on comparing a slur direction with an event direction, but
an explicit slur direction can be caused by an explicit direction in a Slur
tweak or override, not just by an explicit event direction.
I doubt that detecting this case would be worth the trouble.