Barbican, LondonSweeping nostalgia meets occult menace in this three-part homage to dance pioneer Isadora Duncan Isadora Duncan was a founding figure of modern dance. Replacing ballet's pointe shoes, tutus and technical armoury of steps with bare feet, loose tunics and a faith in natural movement was both a rebellion against its artifices and a radical way to cast off the corsetry of 19th-century femininity, and proc…