Re: Treble clef with optional octavation?

[Marc Hohl]

Alexander Kobel schrieb:
> Hi, all,
>
> anyone knows how to write a G clef, like in
>     \clef "treble_8"
> but with the octavation "8" in parentheses? (It's for a staff with a 
> solo voice sung by either alto or baritone, and thus the octavation is 
> optional.)
This solution (with a callback created by Neil Puttock) works fine:

#(define-public (parenthesize-me grob)
 (let* ((font (ly:grob-default-font grob))
        (open (stencil-whiteout (ly:font-get-glyph font 
"accidentals.leftparen")))
        (close (stencil-whiteout (ly:font-get-glyph font 
"accidentals.rightparen")))
        (me (ly:text-interface::print grob)))
       (ly:stencil-combine-at-edge
        (ly:stencil-combine-at-edge
         me X LEFT open)
        X RIGHT close)))

test = \relative c, {
 \override Staff.OctavateEight #'stencil = #parenthesize-me
 \clef "treble_8"
 c4 d e f
 g a b c
}

\score { \test }

Marc
> Thanks,
> Alexander
>
>
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