The show, entitled ‘Between the Sky and My Head,’ has been open at the North Rhine-Westphalia town’s Kunsthalle since the end of August, and only 15,000 visitors were expected.
It is a collection of her work from 1961 until the present day, with water colours, drawings and installations such as the 1961 ‘Cough Piece’ – a recording of Ono coughing and making other noises.
Ono has slowly come out of the shadow of her late husband John Lennon, who she married in 1969. She was a concept artist when they met at one of her shows, and has continued her work since his murder.