This works perfectly!

Thanks ever so much. 

If anyone is curious to see how this looks, I have a sight-singing blog, 
http://moveabledo.com Moveable Do , that I'm putting together using Lilypond
and some other resources. 

Best, 

   - Eugene

Neil Puttock wrote:
> 
> On 7 March 2011 21:11, emw <ewal...@weisswalden.com> wrote:
> 
>> If anyone can help me write a Scheme tweak for this, I'd appreciate it.
>> Even
>> pointing me to a tweak that does some of the same things would be helpful
>> (i.e. tweaking output across an entire Staff in a StaffGroup, etc).
> 
> Each Staff context contains a grouping object (a VerticalAxisGroup)
> which carries all the elements on the stave.  You can extract the
> bounding box for this and print a solid coloured box as its stencil
> (which is usually unset):
> 
> \version "2.12.3"
> 
> highlight = {
>   \override Staff.VerticalAxisGroup #'layer = #-1
>   \override Staff.VerticalAxisGroup #'stencil =
>   #(lambda (grob)
>      (let ((x-ext (ly:grob-property grob 'X-extent))
>            (y-ext (ly:grob-property grob 'Y-extent)))
>        (grob-interpret-markup grob
>                               (markup #:with-color yellow
>                                       #:filled-box x-ext y-ext 0))))
> }
> 
> \new StaffGroup <<
>   \new Staff \relative c' {
>     c1
>   }
>   \new Staff \relative c' {
>     \highlight
>     c1
>   }
>>>
> 
> If you're running 2.13, defining \highlight as a context modification
> makes it easier to add to other contexts such as Lyrics:
> 
> \version "2.13.53"
> 
> highlight = \with {
>   \override VerticalAxisGroup #'layer = #-1
>   \override VerticalAxisGroup #'stencil =
>   #(lambda (grob)
>      (let ((x-ext (ly:grob-property grob 'X-extent))
>            (y-ext (ly:grob-property grob 'Y-extent)))
>        (grob-interpret-markup grob
>                               (markup #:with-color yellow
>                                       #:filled-box x-ext y-ext 0))))
> }
> 
> \new StaffGroup <<
>   \new Staff \new Voice = "melody" \relative c' {
>     c1
>   }
>   \new Lyrics \highlight \lyricsto "melody" {
>     foo
>   }
>   \new Staff  \relative c' {
>     c1
>   }
>   \new Staff \highlight \relative c' {
>     c1
>   }
>>>
> 
> Cheers,
> Neil
> 
>  
> _______________________________________________
> lilypond-devel mailing list
> lilypond-devel@gnu.org
> http://lists.gnu.org/mailman/listinfo/lilypond-devel
> 
> 

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