Re: A lazy \clef command

[Han-Wen Nienhuys]

address@hidden wrote:
> I would need a lazy "clef" command, which would only change the
> key if required: something such as \lazyClef treble that would
> be equivalent to the \clef treble command if the current clef
> is not the treble, and do nothing otherwise.
>
> Can this be achieved using functions or any other mechanism ?

it would be something along the lines of

 \applycontext #(lambda (context)
   (if (not (eq? (ly:contxet-property context 'clefGlyph) "clefs.G"))
       (begin
        (ly:context-set-property! context 'clefGlyph "clefs.G")
        ...more property settings...
       )))

Then you have to put that in the form of a music function.


--
 Han-Wen Nienhuys - address@hidden - http://www.xs4all.nl/~hanwen