This year’s Turner prize exhibition opens this Saturday at Cartwright Hall in Bradford, the current UK city of culture. The artist, 28, displays their affinities in an installation that feels at once rich and sparse, restrained and confessional. The private and the public, what’s background and what is foreground in the mixed race, gender fluid, working-class artist’s life? This time, tinkling bells, whale song and radiophonic whoops, wind-chimes and the insistent warble of an old telephone. View image in fullscreen Compelling … Kalu at work.