Here are two bits of lilypond input. The first
version
does what I want it to do - it prints the two top
voices on the top staff, the words in the middle and
the two lower voices on the lower staff. (Lily version
is 1.4.7)
\score {
<
\context Staff = upper
When I comment out the last note of the bass part in
a 4 part song, ly2dvi crashes. If I leave that note
in place, ly2dvi works properly. I have found that I
can cause the crash by simply inserting a percent sign
to comment out a line or a part of a line.
The error message given is included bel