Guerssen Records out of Catalonia, Spain is known for putting out some amazingly weird psych and lo-fi music, but this one has to be one of the most charmingly weird ones in their catalog. Two Paraguayan brothers of German origin, Joern and Dirk Wenger, self-released an album in 1971 called Pops de Vanguardia and had a deal with EMI-Argentina for a series of albums which came out and gained them a bit of fame, but Joern was also a student of Karlheinz Stockhausen, so you know his weirdo bona fides were going to be solid.  This album does not disappoint at…