Re: (De)activate lilypond-source snippets based on whether a variable is defined

[Hans Aikema]

On 20-5-2013 15:26, David Kastrup wrote:
> Not necessarily fabulous, but you could likely work with
>
>            $(if (defined? 'soloOneMusic)
>              #{
>               \new Staff = soloOne \with {
>                     midiMinimumVolume = \volFullMin
>                     midiMaximumVolume = \volFullMax
>               }<<
>                   \new Voice = "voiceSoloOne" { << \global \soloOneMusic >> }
>               >>
>               #})

Looks pretty much like what I'd like to accomplish and is still fairly 
readable for programmers. Thanks, for the snippet and the pointers for 
more information. I'll play around a little to see if it fits my needs. 
If I can get this working it saves me a very error-prone layout-file 
editing task.

regards,
Hans