Peter Bjuhr <peterbj...@gmail.com> writes: > With the support of Janek and Franciszek I now got the compilation to > work. I should add that the problem was not in the script but due to > misuse from my part!
If you cut your hand with a knife by letting the handle slip, it's a
misuse of the knife. Still some knifes come with guards.
"Misuse" is still worth investigating.
> Attached is a test file I just run. If you David and Gilberto (or
> anyone else of course) have any more test ideas for this I'll be happy
> to take part!
> % this could be the notation of previous ex. w. split beaming in my opinion
> {
> \new Voice {
> \grace { c'16 d' e' f' e' f' g' \fermata } \grace { a'8 g' a' } g'4
> }
> }
> % 27:55: warning: adding note head to incompatible stem (type = 1/16)
> % \grace { c'16 d' e' f' e' f' g' \fermata } \grace {
> % a'8 g' a' } g'4
> % 27:55: warning: maybe input should specify polyphonic voices
> % \grace { c'16 d' e' f' e' f' g' \fermata } \grace {
> % a'8 g' a' } g'4
Well, that's not a problem of Grace_auto_beam_engraver. LilyPond in
general is not happy with multiple grace groups in succession. However,
it _is_ quite appalling just _how_ unhappy it is with this one:
<<inline: newgracebeamer.preview.png>>
The right way to break up the beaming is using explicit beaming:
{ \grace { c'16 d' e' f' e' f' g' \fermata a'8[ g' a'] } g'4 }
<<inline: newgracebeamer2.preview.png>>
or similar:
{ \grace { c'16 d' e' f' e' f' g' \fermata a'8\noBeam g' a' } g'4 }
<<inline: newgracebeamer3.preview.png>>
The decisive thing is that LilyPond will only start an automatic beam at the start of the grace group. You might need a \noBeam there, or at the first note that should escape the autobeaming. -- David Kastrup
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