Maybe you have been hurt by the bug described in
http://mail.gnu.org/archive/html/bug-lilypond/2003-10/msg00030.html
This has been fixed in 2.1 but it seems it was never backported
to 2.0.
Even when this bug is solved, you'll find some problems with this
approach. When I try it with a recent 2.1.x
In converting to 2.0, I have to write more shell scripts to make my
incipits work, so I figured I might do a major redesign to make them
look better as well as work in 2.0.
What I want to do now is use the ambitus engraver next to the modern
clef for indicating the range, and have a separate