Hello, we experienced, that score with the raw=1 tag, gave bad results with broader line lenghts. i.e. we tried to give specific line breaks here:
https://de.wikipedia.org/w/index.php?title=Benutzer:Reiner_Stoppok/Tanzlied_aus_Poniky&oldid=163890384
(I used the \new Voice with s2 * 6 \break etc. but 7 bars in a line were impossible, it broke to 4 and 3)
We discussed it here
https://www.mediawiki.org/wiki/Topic:Tna2ictzst767i6i
and found the limiting issue being:
ok, so it looks like the Score extension adds "-dsafe=#t" which tells lilypond to disable some stuff -- like paper sizes.
In our case it limited # (set-paper-size = "a3 'landscape") or a4landscape, too, and # (set-default-paper-size = "a3 'landscape") which worked fine with frescobaldi and at the console.
Reducing the output works, but not expanding it over the size which is the paper issue.
We decided to request a paper choice feature, or a jail for the whole extension. Especially landscape format would be desireable and some number of pages (Four at least? For one Page partitura. We had no discussion yet.). Or A3 or "ansi d". Or even longer lines.
Even one needs the raw=1 if he uses definition in score like
melody = { a b c}
Cheers from a Newbie