Private Passions

Radio 3, midday

Michael Berkeley welcomes James

Runcie, son of the former Archbishop of Canterbury

Robert Runcie and author of the novels adapted for the ITV show Grantchester who, more recently, has written a play and a novel about Bach’s St Matthew Passion. He discusses his parents and his wife, who died of motor neurone disease.

A new series of Desert Island Discs (Radio 4, 11.15am) begins as Lauren Laverne talks to Sue Barker.

There’s another chance to hear Simon Russell Beale star in Nell Leyshon’s Drama On 3: Folk (Radio 3, 8pm), inspired by Cecil Sharp’s efforts to gather folk songs in the 1900s.