Related Information for Prefuse 73 Prefuse 73 is a pseudonym of Barcelona, Spain, hip-hop / electronic producer / artist Guillermo Scott Herren (aka Delarosa and Asora, Piano Overlord and Ahmad Szabo). He also performs with Eva Puyuelo Muns, in a duo known as Savath & Savalas. Herren debuted with EP Estrocaro (Oct 2000, Warp – aka Estrocaro EP) and his latest album is Estrocaro (16 Apr 2011, Beat / Jp – Warp / RoTW).He began his career DJing at MJQ, a small night club in Atlanta, and then began working in commerci.. read more