Listen to Act I. Waltz online. Act I. Waltz is an English language song and is sung by Moscow New Philharmonic Orchestra, V.Ponkin and Conductor. Act I. Waltz, from the album P.Tchaikovsky: The Swan Lake, ballet (excerpts), was released in the year 2006. The duration of the song is 7:06. Download English songs online from JioSaavn.