If you want a whole history and explanation about the Bauls, then go look at wikipedia. There's just a lot of stuff to write about this, and really, I don't have that much of an interest in writing that article. All you need to know about this is given to you by the album title. It's Indian street music. Either you have an interest in this, or you don't. It's part of the nonesuch explorers series, if that means anything to you.
Acid Pauli / Es war einmal Indianerland 
48 minutes ago