This was one of those albums that makes you rethink all the music you've previously heard, or at least that's what it did to me. Apparently, the story is that a bunch of German hippies living on a commune took a bunch of acid and recorded all of the Amon Duul (not to be confused with Amon Duul II) in this one session. The music reflects that freaked out, stoned cavemen feel. I've still yet to find anything else that sounds like this, although my quest has led to equally important discoveries like Exuma. A complete classic mind melter.
Acid Pauli / Es war einmal Indianerland 
48 minutes ago