RITES Saturday 23 April, 7pm and 9pm, Royal Festival Hall, £28/£17/£8 Digital artist Klaus Obermaier and the City of Birmingham Symphony Orchestra create a 21st-century realisation of Stravinsky’s early modernist masterpiece The Rite of Spring with a single dancer Julia Mach performing on stage. The audience experience fascinating visual effects by wearing 3D glasses. Each performance lasts approximately 45 minutes and there is no interval.