Am 13.03.2015 um 19:32 schrieb Mark Knoop:
Hi,
I'm trying to make a function to add a glissando to the last note of a
music expression. I've got to a version which works with simple music
expressions. However, I need to use it with transposed and relative
music where the actual notes may be nested within other lists.
How do I recurse into the music to find the SequentialMusic elements?
\version "2.18.2"
addGliss = #(define-music-function (parser location music) (ly:music?)
"Add a GlissandoEvent to the last element of music"
(let* ((gliss-note (last (ly:music-property music 'elements))))
(set! (ly:music-property gliss-note 'articulations)
(cons (make-music 'GlissandoEvent)
(ly:music-property gliss-note 'articulations)))
music))
mynotes = { c' d' e' }
{
% works with above function
\addGliss { c' d' e' } c'
\addGliss \mynotes c'
% doesn't work with more complex music
%\addGliss \relative c' { c d e } c
%\addGliss \transpose c e \relative c' { c d e } c
}
... but it works with
\relative c' { \addGliss { c d e } c }
\transpose c e \relative c' { \addGliss { c d e } c }
HTH,
Marc
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