Listen to Swan Lake, Op. 20, Act III: No. 19, Pas de six - Variation IV online. Swan Lake, Op. 20, Act III: No. 19, Pas de six - Variation IV is an Instrumental language song and is sung by Anatoly Lyubimov, Nadezhda Tolstaya, Evgeny Svetlanov and Ussr State Symphony Orchestra. Swan Lake, Op. 20, Act III: No. 19, Pas de six - Variation IV, from the album Tchaikovsky: Ballets, was released in the year 2011. The duration of the song is 1:20. Download Instrumental songs online from JioSaavn.