Michael Berkeley talks to award-winning novelist Jeanette Winterson, whose books include Oranges Are Not the Only Fruit, Written on the Body, The Passion, Lighthousekeeping, and most recently The Stone Gods. She writes passionately, and is equally passionate about music, especially the human voice. Bjork, Maria Callas, Sarah Connolly and Ian Bostridge are among her chosen singers, as well as cellist Natalie Clein with an eloquent new recording of Elgar's Cello Concerto.