Peter Crighton wrote:
But I would like to be able to use the function [...]
> so it doesn’t only affect the next note,
> but a sequence of notes enclosed in { … }:
The source file music-functions.scm defines
music-map
which you can use for this:
bgr = #(define-music-function (parser location music) (ly:music?)
(music-map (lambda (note)
#{
\tweak NoteHead.font-size #-2
\tweak Accidental.font-size #-2
#note
#})
music ))
There is an advanced example in the regression tests:
http://www.lilypond.org/doc/v2.18/input/regression/collated-files.html#music-map.ly
Cheers,
Robin
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