Re: Issue 1967 in lilypond: Concurrent slurs that start and end at the same moment should not produce a warning

[lilypond]

Comment #11 on issue 1967 by address@hidden: Concurrent slurs that start and  
end at the same moment should not produce a warning
http://code.google.com/p/lilypond/issues/detail?id=1967

Oh.  So the partcombiner is working as designed and as before.  That means  
we have one _regression_ to fix, namely the warning (and you changed the  
summary accordingly).

But we might also have an enhancement issue here: should the part combiner  
try to merge articulations in some manner when chording material?  If it is  
operating at the _event_ level, it does not seem to make all that much  
sense to play several indistinguishable event starts, unless the order  
makes no difference.  And "the order makes no difference" will be the case  
for _chord_ articulations if multiple spanners _either_ start at the same  
moment _or_ end at the same moment.  If the articulations/spanners are  
attached to individual _notes_, then ambiguity is more of a problem, but  
then putting stuff in a single _voice_ is probably not the right way to  
proceed (it's just not easy to get that into Bach's head so that it would  
stick).