Portion of the International London Ballet performance of the Swan Lake at the Liceo Theater in Barcelona on May 12th, 1953, with an introduction by Tchaikovsky (Antonio Prat Pau).Portion of the International London Ballet performance of the Swan Lake at the Liceo Theater in Barcelona on May 12th, 1953, with an introduction by Tchaikovsky (Antonio Prat Pau).Portion of the International London Ballet performance of the Swan Lake at the Liceo Theater in Barcelona on May 12th, 1953, with an introduction by Tchaikovsky (Antonio Prat Pau).