Radio: Pick of the Day

TWO BIOGRAPHIES of major figures in the world of jazz this evening: The Armstrong Tapes (8pm R4) follows the life and thoughts of Satchmo (right) through recorded conversations. And His Mother Called Him Bill (6pm R3) is about a less famous, though highly influential figure - Billy Strayhorn, thought of as Duke Ellington's junior partner. Often considered as the man who wrote down the tunes that Ellington came up with, here he is rescued as a composer in his own right.

Graeme Garden claims, in What's the Bleeding Time? (1pm R2), to have gone in for comedy because he wasn't funny enough to be a doctor. Here he digs up old comedy clips with a vaguely medical connection.