Re: Changing stem stencil

[Peter Bjuhr]

On 2014-02-27 20:44, Peter Bjuhr wrote:

Hello,

I have a question about changing stems. In my case it's related to an exploration of using SMuFL Fonts in LilyPond, which are made available in the openLilyLib snippets repository by Joram Berger and Nathan Ho. I would like to take the opportunity to thank them both!

[...]

Any guidance will be appreciated!

I found this http://lsr.di.unimi.it/LSR/Snippet?id=864, and thanks to that I managed to set up this script:

\include "../smufl/definitions.ily"

#(define (PendereckiTremolo-stem grob)
   (if (ly:stencil? (ly:stem::print grob))
     (let* ((stencil (ly:stem::print grob))
            (X-ext (ly:stencil-extent stencil X))
            (Y-ext (ly:stencil-extent stencil Y))
            (width (interval-length X-ext))
            (len (interval-length Y-ext)))
  
       (ly:stencil-translate
         (grob-interpret-markup grob
           (markup #:smuflglyph "stemPendereckiTremolo"))
         (cons 0 (interval-start Y-ext))))
     #f))

 \relative c'{
  \override Stem #'stencil = #PendereckiTremolo-stem
  f4 b c e
}

But if anybody wants to try this remember that it will only work with the addition of the SMuFL script in the openLilyLib snippets repository https://github.com/openlilylib/snippets/tree/master/custom-music-fonts/smufl

Best
Peter