Issue 1580 in lilypond: midi2ly creates invalid LilyPond input for a staff with more than four voices

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Defect

New issue 1580 by jan.nieuwenhuizen: midi2ly creates invalid LilyPond input  
for a staff with more than four voices
http://code.google.com/p/lilypond/issues/detail?id=1580

See the attached file.  Midi2ly produces stray `\voice' commands,
which LilyPond chokes on.