TODAY’S RADIO

SCALA RADIO BOOK CLUB 10.30AM, SCALA RADIO

★★★ It’s early morning in East Berlin in 1963, and at a quiet border crossing, an exchange of prisoners – one of them an American KGB agent – is under way. Bestselling author Joseph Kanon’s latest spy thriller, The Berlin Exchange, is set during the Cold War.

Joseph joins Mark Forrest this morning to talk about the book.

RAMBLINGS 3PM, RADIO 4

★★★★ Highland cattle and feral ponies browse the grassland around Wicken Fen. The sails of an old windpump turn and, as the sun sets, the starlings put on an impressive aerial display. Wicken Fen is one of Britain’s oldest nature reserves, and teems with life. Ajay Tegala, a warden for

Wicken Fen, takes Clare Balding for a walk beneath the big skies of the Fenland, and tells her about ongoing plans for the rewilding of this part of Cambridgeshire.

THE CURIOUS CASES OF RUTHERFORD & FRY 4PM, RADIO 4 ★★★

The clunky format of this series is that Adam Rutherford and Hannah Fry are a detective duo who solve scientific mysteries. Ifyoucangetoverthatbitof irritation, you can learn a lot from them. Today, we are taken into the world of electromagnetic waves that can travel through air, solid matter and vacuums.

THE CLASSIC FM CONCERT 8PM, CLASSIC FM

★★★

Clara Schumann was a child genius. She was an accomplished pianist, and wrote her Piano Concerto at the age of 13 while on a concert tour of Europe. Classic FM listeners voted the Concerto into the station’s

Hall Of Fame last year, and tonight, John Suchet concludes his programme with Isata Kanneh-mason, another piano prodigy, playing the work.

Clare Balding (3pm, Radio 4)