S. Hurok in association with Patrick Hayes and The Friday Morning Music Club presents Leningrad Kirov Ballet, formerly The Maryinsky Ballet, artistic director: Konstantin Sergeyev, principal conductor: Evgeni Dubovskoi, conductor: Vadim Kalentiev, principal designer: Simon Virsaladze, guest conductor: Arthur Lief, director of the American tour: Vladimir Koloboshkin, director-general cultural activities of the city of Leningrad, "Swan Lake," a ballet in four acts, music by Piotr Ilich Tchaikowsky, first produced at the Mayinsky Theatre, January 27, 1895, choreography: Marius Petipa and Lev Ivanov, revised by Konstantin Sergevey, design: Simon Virsaldze, conductor: Evgeni Dobovskoi.