Petroc Trelawny presents a selection of music and guests from the arts world. Conductor Yakov Kreizberg talks about his upcoming Prom with violinist Julia Fischer, while composer/conductor George Benjamin and violinist Carolin Widmann - who also plays live in the studio - discuss their concert programme based on a French theme. Plus conductor Andrew Carwood and organist James O'Donnell ahead of their Prom which brings together works by Messiaen and Manchicourt.