Re: \sustainOff on \alternative

[Lukas-Fabian Moser]

> > Could you consider upgrading to LilyPond 2.24? That's the current 
> > stable version (and my code was written for it). If that's 
> > impossible, I can sidestep the use of \after, but frankly, it's 
> > easier to help you if you provide a working example yourself.
>
> I am fairly certain David K. wrote \after back in the 2.19 era, so 
> there should be no particular need to run 2.24.  I found this version 
> on an old thread:
>
> %%%%
> after =
> #(define-music-function (t e m) (ly:duration? ly:music? ly:music?)
>   #{
>     \context Bottom <<
>       #m
>       { \skip $t <> -\tweak extra-spacing-width #empty-interval $e }
>     >>
>   #})
> %%%%

When I researched variants of \after while working on getting it into 
standard LilyPond (which happened somewhere in the 2.23 line), the 
earliest incarnation I could find was 
https://lists.gnu.org/archive/html/lilypond-devel/2012-09/msg00342.html 
- so that's 2.16 era.

Of course you're right that I might just as well have provided the OP 
with a simple implementation of \after. (But upgrading is a good idea 
anyway, I think - there has been marvelous progress during 2.23.xx I 
think, all due to the work done by Jean, Dan and others.)

Lukas