Re: how to detect position of note on stave?

[David Nalesnik]

Hi Graham,

On Wed, Jan 7, 2015 at 4:39 PM, Graham King <address@hidden> wrote:

I'm trying to replace a note with one of two special glyphs, depending on the note's position on the stave:  if on the third line or above, stem down, otherwise stem up.  Is it possible to extend the following code to detect automatically (and independently of clef or transposition) which glyph should be chosen?

Sure--try this:

 

\version "2.19.5"

#(define ((note-head-musicglyph name) grob)

   (grob-interpret-markup grob (make-musicglyph-markup name)))

\score {

  \shiftDurations #-1 #0 {

    \relative c' {

      \time 4/2

      \override NoteHead #'stencil = 

      #(lambda (grob)

         (let ((pos (ly:grob-property grob 'staff-position)))

           (if (>= pos 0)

               (note-head-musicglyph "noteheads.dM2mensural")

               (note-head-musicglyph "noteheads.uM2mensural"))))

      c c'

}}}