A musical that is dubbed?
In Sweden we have very few dubbed movies. We normally have subtexts instead. For children most movies are dubbed though, and there is on those (few) movies normally a tag line stating “Everyone speak Swedish”. In Malmö (or Malme), at Slagthuset, I saw this advert that say “Everyone speak Skånska”, where Skånska is the dialect spoken in Scania (Skåne in Swedish).