That said, there aren’t that many paper/layout variables. Setting selected ones manually like you suggest could be OK. Maybe also check what happens with very long rhythms, do they get broken? Maybe try ly:one-line-auto-height-breaking? I didn’t test anything (vacation).
I'm probably only showing my ignorance: ly:XXX-breaking are page-breaking algorithms; I would have thought that these, belonging to \paper { ... }, cannot be used inside a \markup \score { ... } at all?
Lukas
