Re: Optional chords

[Richard Shann]

On Fri, 2016-10-28 at 11:56 +0100, Richard Shann wrote:
> On Fri, 2016-10-28 at 10:43 +0200, Herbert Liechti wrote:
> > Hi
> > 
> > 
> > In Jazz notation you find often chords symbol in parenthesis (see the
> > attached picture for an example). It this case it indicates what to
> > play when doing a turnaround in other cases it indicates an
> > alternative to the standard chords.
> > 
> > 
> > Is there a way to do that in lilypond? If found no hints in the
> > snippets and documentation. I use this quite often.
> 
> \parenthesize <c' e' g'>4
> 
> I got this from Denemo's output for the "Parenthesize Chord" command...

That doesn't do several chords in one parenthesis, I looked at
http://lsr.di.unimi.it/LSR/Snippet?id=902 and cooked up this example:

startParenthesis = {
  \once \override ParenthesesItem.stencils = #(lambda (grob)
        (let ((par-list (parentheses-item::calc-parenthesis-stencils grob)))
          (list (car par-list) point-stencil )))
}

endParenthesis = {
  \once \override ParenthesesItem.stencils = #(lambda (grob)
        (let ((par-list (parentheses-item::calc-parenthesis-stencils grob)))
          (list point-stencil (cadr par-list))))
} 

%%%%%% Example:
\new ChordNames  {
  \override ParenthesesItem.font-size = #5
  \startParenthesis \parenthesize <c e b>
  d' e' f'
  \endParenthesis \parenthesize g'
} 

HTH

Richard





> 
> Richard
> 
> > 
> > 
> > Thanks and best regards
> > herbert
> > -- 
> > address@hidden,  ThinX AG,  Bielstrasse 69,  CH-4500
> > Solothurn
> > Tel +41 (0)32 623 81 66, Mobile +41 (0)76 334 81 66,
> > http://www.thinx.ch
> > 
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> 
> 
> 
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