Le 2022-12-20 22:20, | || | | a écrit :
I need to count the number of notes between to functions. For Example:
\new Staff{
c4-- \startCount d8-> e8-> f8-> g8-> \stopCount
#(display how-much-notes-selected)
}
This will be develop for more complex function that will change
proportionally scale of every notehead in that kind of block, do the
same as cresc. hairpins but will act on every notehead instead of
using spanner.
Sorry to answer so late.
One of the file provided with "arranger.ly" (link below) is called
addAt.ly, which has been designed for this kind of thing (If I
understood correctly your request).
%%%%%%%%%%
\version "2.24.0"
\include "addAt.ly"
#(define (events-count mus event) ; event as a symbol or a list of
symbols
(length (extract-named-music mus event)))
music = \relative {
c4 c c c
\anchor #'A
d d d <d f>
\anchor #'B
e e e e
}
musicAtoB = \musicAt #'A \music % music between A and the next anchor
#(format #t "Number of notes between A and B : ~a\n"
(events-count musicAtoB 'NoteEvent)) % 5
#(format #t "Number of chords or notes between A and B : ~a\n"
(events-count musicAtoB '(EventChord NoteEvent))) % 4
\new Staff { \musicAtoB }
%%%%%%%%%%
You need to download 2 files : addAt.ly and extractMusic.ly (called by
addAt.ly)
Link for downloading :
http://gillesth.free.fr/Lilypond/arranger.ly/
Hope that helps.
--
Gilles
