Back up to: imagine...
4/4 Alan Yentob examines the extraordinary story of pop icon Sir Tom Jones.
3/4 Alan Yentob meets 92-year-old Diana Athill, whose memoirs chart a life less ordinary.
2/4 Alan Yentob considers the influence of play with some of Britain's leading artists.
1/4 Nigel Kennedy explores the rich musical traditions of his adopted homeland - Poland.