Re: Issue 984 in lilypond: Noteheads don't merge when one of the voices contains a second

[lilypond]

Updates:
        Labels: -Patch-needs_work Patch-new

Comment #13 on issue 984 by address@hidden: Noteheads don't merge when  
one of the voices contains a second
http://code.google.com/p/lilypond/issues/detail?id=984

This might be easier than you think.
Mike's patch actually worked just fine; it was merely obfuscated. (A bit of  
its code /appeared/ to make the error that David mentions, but that code  
had no effect.)

Here is a cleaned version using that idea  
<http://codereview.appspot.com/5823046>

The case where both voices have identical seconds << <c d>\\<c d> >> is not  
merged by default, because that could be mistaken for <<d\\c>>.  One can  
\override NoteColumn #'force-hshift = #0.95 on the lower voice and #0.0 on  
the upper voice to merge them by hand.