Hmm... as a German I recognize both the beer brand and part of the band name with "Allgäu". But I am fairly certain that this is not one of the beer brands allowed to make a "tent" at the Wies'n (Oktoberfest) but without resorting to Mr. Google I'm not absolutely certain, so my only guess would be the Oktoberfest in München (only 300Km from my current curfewed location in Bavaria) but I have to admit that I'm not sanguine about my guessing this correctly since I recall that only 6 breweries are allowed and I can think of 4-5 of them...