A man stands in front of the lift of his Leningrad apartment all night, fully dressed in a formal suit with an attache case, as he doesn’t want to go through the ignominy of being dragged out his bed in his pyjamas by the Power to be taken to the Big House from where nobody returns, or they return with a bullet at the back of their heads. This imagery sets the tone for Julian Barnes’s new book—intriguing, grim and grey. The man is the 31-year-old Dimitri Dimitrievich Shostakovich, the top composer in Stalin’s Russia.