Also, all true Sjöstrand fanatics should check out volumes 2 and 3 of his Arkivkollage series. I featured #1 in the series a while back, and since then there's been two more -- each 20 minutes or so of songs from Martin's archives, collaged together into a must listen for purveyors of weirdo lo-fi psych-pop extended freak-outs:
Deutschpunk from Leipzeig:
Hip-hop from Dallas: