This is a German folk band that plays traditional music from the region. The Pack of Ragamuffins is a group of five musicians who play a variety of instruments including accordion, fiddle, guitar, and mandolin. They specialize in performing traditional songs from the German countryside, as
From Wikipedia
"The Pack of Ragamuffins" is a German fairy tale collected by the Brothers Grimm, number 10. The title has been variously translated into English, as in "The Adventures of Chanticleer and Partlet: How They Went to the Mountains to Eat Nuts", "The Pack of Ragamuffins", "The Vulgar Crew", "A Pack of No-goods", "Riffraff", "The Pack of Scoundrels", "The Good-For-Nothings", and possibly others.