My guest this week grew up on classical music. Childhood piano lessons inspired her latest novel, Feral Youth, about the relationship between a troubled teenager and a piano teacher. One pivotal scene came while she was listening to Wagner; the surging music seemed to insist she create a dramatic bonding moment between her two principals. She herself is no stranger to drama; she made her name with a semi-autobiographical novel about life in London’s Square Mile, then famously went indie because her publisher, HarperCollins, tried to brand her books as chick-lit. She is Polly Courtney and she’ll be here on Wednesday with her Undercover Soundtrack.