Piano Overlord

Guillermo Scott Herren is an American producer who has been based in Atlanta, Barcelona, and New York City. Herren releases music under the aliases Prefuse 73, Delarosa & Asora, Ahmad Szabo, and Piano Overlord, and is also part of the groups Savath y Savalas, Sons of the Morning, Fudge, Risil, and Diamond Watch Wrists.