Cynthia Karl <pckarl <at> mac.com> writes:
> \score {
> \new Staff << \key c \major \music >>
> \layout {
> \context { \Voice \consists "Ambitus_engraver" }
> }
> }
>
> throws the following two programming errors:
"Programming errors" are intended to report conditions that a programmer
thinks cannot happen in correct operation of the program. But with a large
program with large numbers of people working on it, what one programmer thinks
is an obviously-wrong situation might be considered a harmless null-case by
another programmer.
In this case, \key c\major is alone in its own voice with no notes, so the
Ambitus_engraver for that voice creates an ambitus with no note-heads,
but the note-column engraver thinks that an ambitus with nothing in it
must be an error.
> Where can I find out what's happening here?
http://git.savannah.gnu.org/gitweb/?p=lilypond.git;a=blob;f=lily/note-column.cc
> and is there a way to suppress these errors similar to the way that
> warnings can be suppressed.
I don't think so.
I would write
\new Staff \new Voice << \key c \major \music >>
so that LilyPond's right hand doesn't fret about the empty voice for which
her left hand created an empty ambitus
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