In Swan Lake, choreography by Rudolf Nureyev, with guest artist Natalia Osipova. Swan Lake is a ballet in which Nureyev danced many times in Russia and on which he had strong views. He was not satisfied with the traditional ending – which he felt untrue to the tragic undertones of the music – and he wanted to build up the role of the prince to create a proper counterpart to the ballerina. So he had the prince set a dark mood from the beginning, gave him an extra dance with his friends and adopted a variation of the ending with the prince drowning in an overflowing lake. Teatro alla Scala, tel. 027203744, www.teatroallascala.it.