Open Air May 10

Alan talks with John Mangum, Director of Artistic Planning for the San Francisco Symphony, about their "Barbary Coast and Beyond" concerts this week, featuring music from the gold rush to the Panama-Pacific Exposition. He also talks with composer Ellen Zwilich about the world premiere of the violin concerto she has written for Nadja Salerno-Sonnenberg, which takes place this week with the New Century Chamber Orchestra. And Ronald Chase stops by to chat about recent cultural events.