Sara Mohr-Pietsch talks to Icelandic pianist Vikingur Olafsson, whose new CD juxtaposes the music of French composers Rameau and Debussy, author Christina Guillaumier on her new book The Operas of Sergei Prokofiev, as well as Russian music expert Gerard McBurney, and visits English National Opera in London to chat to cast and director Joe Hill-Gibbins of a new production of Mozart's The Marriage of Figaro.