Compiling this file displays "#<Grob System >" on the stdout:
{
\tweak before-line-breaking
#(lambda (grob)
(let* ((NoteColumn (ly:grob-parent grob X))
(PaperColumn (ly:grob-parent NoteColumn X))
(System (ly:grob-parent PaperColumn X)))
(display System)))
c''
}
I expected this to do the same, but instead it prints "()".
{
\tweak before-line-breaking
#(lambda (grob) (display (ly:grob-system grob)))
c''
}
Am I missing something? Or is ly:grob-system broken?
Thanks.
- Mark
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