Re: \tagsOn, \tagsOff

[Han-Wen Nienhuys]

Kieren MacMillan wrote:
> For instance, let's say I want the following systems on my page:
>     4 measures, 2 staves (SA + TB)
>     3 measures, 4 staves (S+A+T+B)
>     5 measures, 1 staff (SATB/unison)
>
> I'd be able to use
>
> global =
> {
>     \time 4/4
>     \tagsOn { #'sa #'tb } s1*4 \break
>     \tagsOn { #'s #'a #'t #'b } s1*3 \break
>     \tagsOn { #'satb } s1*5
> }
>
> or [with \tagsOn not automatically turning off any tag not listed, we 
> need a \tagsOff, e.g.,]

> I don't think there's a way to really do this kind of thing right now in
> Lily (someone please correct me if I'm wrong!), and I think it would be
> wicked helpful. Of course, if there's an even better way of handling
> this than taking advantage of \tag, I'm open to suggestions/discussions.
>


There is the keepAliveInterfaces, which you could set for each lyrics 
line separately. You should be able to do it with

 \context Lyrics = "SA" \set keepAliveInterfaces = #'()
 \context Lyrics = "SA" \set keepAliveInterfaces = 
#'(lyric-syllable-interface)

to switch off/on respectively.

I can cook up a nice music function to do it for you, in the form of 
\tagsOn / \tagsOff for EUR 100, but you might want to experiment with 
the bare bones first.



--

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

LilyPond Software Design
 -- Code for Music Notation
http://www.lilypond-design.com