Hello everyone,
I was wondering, is there a way to, given a 'NoteEvent (or 'EventChord, or whatever other music _expression_ for that matter) find the grob or grobs that it generates?
Although I don't know how Lilypond actually processes input, I suspect that this isn't possible. I imagine that if a function is getting passed the events then they have not been translated into grobs yet, and if they have then I imagine that functions in the input have already been processed at this point. But I don't really know, so I'd rather ask.
So, more concretely, say that in the following:
\relative c' {
c d \something e f
}
Is it possible for `\something`, a music function that is receiving the note e as its argument (of type `ly:music?`), to get to the grob generated by that e and store a reference to it in a variable?
So, something among the lines of
something =
#(define-music-function (e-note) (ly:music?)
(let ((e-notehead-grob (???magic-proc??? e-note)))
(display e-notehead-grob)
e-note))
I am curious as to whether this has a solution or not.
Thank you in advance!
Stéfano