Born in Belize, brought up in London’s Tottenham, singer/songwriter/composer Errollyn Wallen talks about her life and work in jazz, pop and classical music. Her book Becoming a Composer combines memoir, observations, diary entries, poems and essays, demystifying the world of composing. Her output includes more than 20 operas and numerous orchestral, chamber and vocal works. She has composed pieces for the opening ceremony of the Paralympic Games in 2012, for Queen Elizabeth II’s Golden and Diamond Jubilees and a reimagining of Parry’s Jerusalem for the Last Night of the Proms. She talks to choir director Juliet Russell.