Michelangelo and Coleridge, Dickens and the Impressionists, all left work that they or others deemed unfinished, interrupted or incomplete. In front of a BBC R3 Proms audience at Imperial Collge in London, the poet and broadcaster, Ian McMillan is joined by the writer Meg Rosoff who completed the novel ‘Beck’ for her friend, the late Mal Peet, and art historian and curator, Karen Serres from the Courtauld Gallery to talk about what is meant by unfinished art and literature and why it disturbs, provokes and inspires.