Re: Quarter notes with bars like \breve

[Gregor Giesen]

Dear Simon,

On 28.02.2016 20:12, Simon Albrecht wrote:
> On 28.02.2016 18:31, Gregor Giesen wrote:
> > how can I write a quarter note (without stem) embraced by two bars
> > exactly like a note of the length \breve?
> 
> It’s not easy, since the bars belong to the note head glyph used by 
> breve notes. Probably you need to combine three tools:
> – [\once] \hide Stem
> – Overriding the NoteHead stencil using a markup expression: 
> <http://www.lilypond.org/doc/v2.18/Documentation/notation/modifying-s
> tencils>
> – and the \path markup command 
> <http://www.lilypond.org/doc/v2.18/Documentation/notation/graphic#ind
> ex-_005cpath-1> 
> for drawing the actual note head. I don’t have much experience with 
> this, others on the list might help.
thanks a lot! I tried the following, which unfortunately does not scale
well. However, it is a quick fix:

barPath = #'((moveto 0 -.6)
   (lineto 0 .6)
   (moveto 1.3 -.6)
   (lineto 1.3 .6)
   (closepath))

QuarterBars = {
  \once \override NoteHead.stencil = #ly:text-interface::print
  \once \override NoteHead.text = \markup {
    \combine
      \path #.15 #barPath
      \note #"4" #0
  }
}

Best,
Gregor

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