Re: Conditionally including lyrics

[Jan-Peter Voigt]

Hello Marc,

for me this problem leads to the question how to name variables and how 
store music. I am using my own functions to store music and typeset it 
into a template.
If this template is capable of some stanza option, it can produce Lyric 
contexts as needed. The file attached is my current 
next-version-development-alpha-stuff.
If you look into it, you will first see a lot lot lot of scheme code. At 
the end of the file is a little example, that does not use stanzas right 
now - so this is more an invitation to develop.
The key functions are:

\putTemplate #'(template path) #(define-music-function (parser location 
piece options)(list? list?) #{ ... #}
\setDefaultTemplate #'(music path) #'(template path) #'((option . 
a-list)) % sets current music-path context
\putMusic #'(rel music path) { [the music] } % stores music relative to 
current music-path
\createScore #'(rel music path) % instantiates music relative to current 
music-path (will most times be #'() )

If this is of interest for you, I could explain it more deeply and do 
changes from the comments of someone else.

Cheers,
Jan-Peter

Am 02.12.2011 11:26, schrieb Marc Hohl:
> Hello list,
>
> I have a lot of small music pieces with several stanzas which I store
> like this
>
> textA = \lyricmode {
>   \set stanza = "1. "
>   this is the first stan -- za.
> }
>
> textB = \lyricmode {
>   \set stanza = "2. "
>   and this one is the se -- cond.
> }
>
> textC = ...
>
> together with the melody in files called data01.ily, data02.ily etc.
>
> Now these files should be processed by some kind of generator file, 
> which consists of something like this:
>
> \include "data01.ily"
> \score {
>   \new Staff {
>     \new Voice { \melody }
>     \addlyrics { \textA }
>     \addlyrics { \textB }
>     \addlyrics { \textC }
>   }
> }
>
> Now the data files contain different numbers of stanzas, and ideally, 
> the generator file
> should be intelligent enough to include all stanzas which are present. 
> Has someone an idea
> how to create a loop which scans for textA, textB, textC etc. and puts 
> a command that acts like
> \addlyrics for each hit?
>
> I could do this with some shell scripting, but a lilypondish solution 
> would be better to
> maintain, I think.
>
> Thanks in advance,
>
> Marc
>
>
>
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