Re: 2.23.5 and poly-mark-engraver https://lsr.di.unimi.it/LSR/Item?id=976

[Lukas-Fabian Moser]

Hi Joel,

> Several of the scores used poly-mark-engraver from 
> <https://lsr.di.unimi.it/LSR/Item?id=976> (see also 
> <https://lists.gnu.org/archive/html/lilypond-user/2011-08/msg00157.html>), 
> and this now fails with
>
> > fatal error: cannot find music object: MarkEvent
>
> (Minimal example below signature; the demonstration included in 
> <https://lsr.di.unimi.it/LSR/Snippet?id=976> also fails the same way.)
>
> This is both a bug-report if anyone’s maintaining the snippet, and a 
> question whether there’s now a better way to write da capo, al segno, 
> and other coda-like repeats.

Indeed there is. There's heavy ongoing (or by now maybe even finished?) 
work by Dan Eble on precisely this group of features. I write this here 
because (if I'm not mistaken) Dan is one of the few developers who do 
not follow the lilypond-user list.

Lukas