Tuesday tenderness, as depicted by Nigerian-American artist Toyin Ojih Odutola. The beguiling drawing in charcoal and chalk forms part of A Countervailing Theory, Ojih Odutola’s much-anticipated site-specific installation, commissioned for the Barbican’s Curve gallery and opening today. The cycle’s forty works combine to form an imagined ancient myth (“the tale of a fictional prehistoric civilisation, dominated by female rulers and served by male labourers”) and will be accompanied by a corresponding soundscape designed by Peter Adjaye.