Chuck Berry remembered, The Lost City of Z, Howard Hodgkin portraits, Poem for the Spring equinox

Leonard Cohen said of him 'all of us are footnotes to the words of Chuck Berry', while Bob Dylan described him as 'the Shakespeare of rock & roll'. Kandia Crazy Horse, editor of Rip It Up, the Black Experience of Rock'n'Roll, and music critic Kevin Le Gendre, discuss some key Chuck Berry songs to show what they reveal about Berry's influences, his stature as a world-class musician, and the huge influence he had on those that followed him.

The Lost City of Z is a film inspired by the real-life adventures of explorer Percy Fawcett. Survival expert Ray Mears gives us his verdict.

Continuing Radio 4's poetic celebration of the Spring Equinox, Patience Agbabi reads her poem Mr Umbo's Umbrellas, written especially for the occasion.

Of all the paintings by the artist Sir Howard Hodgkin who died earlier this month, it was his portraits that were most often overlooked. However, this week the National Portrait Gallery stages the first exhibition of these works, which cover the period from 1949 to the present. One of Hodgkin's sitters, the writer Ekow Eshun, discusses the experience.

Presenter: John Wilson Producer: Hannah Robins.