Composer, musical improviser and pianist Wayne Horvitz 's body of work sounds as eclectic as a short list of his ensembles: The Royal Room Collective; Sweeter Than The Day; The Gravitas Quartet; Electronic Circus; The President; Pigpen; Zony Mash. His collaborators include video artists, filmmakers, choreographers, performance artists, actors, poets and novelists - when he's not busy playing sideman to Carla Bley, Bill Frisell, Marty Ehrlich or John Zorn.