Concert· Saarbrücken
Mauleselrock 4.0
Mauleselrock 4.0 appears to be a rock music festival or concert event — likely the fourth edition of a local festival called "Mauleselrock" ("Maulesel" is German for "mule"). I don't have specific details about this event, though, so if you can share more context (like a flyer, program, or location), I'd be happy to write a more accurate summary.