Tonight at the National Opera Center in New York, Pulitzer Prize-winning composer William Bolcom presents live excerpts of his work and speaks about his creative process. As WNYC's Sara Fishko tells us, his influences come from an eclectic array of sources. (Produced in 2005) Creators in Concert: William BolcomThursday, April 57:00pmThe National Opera Center330 Seventh Ave.New York, NY 10001Tickets available at www.operaamerica.org/