Listen to Ballet Swan Lake Op.20, Dances of the Swans: IV. Dance of the Cygnets (Allegro moderato) online. Ballet Swan Lake Op.20, Dances of the Swans: IV. Dance of the Cygnets (Allegro moderato) is an Unknown language song and is sung by Marcatto. Ballet Swan Lake Op.20, Dances of the Swans: IV. Dance of the Cygnets (Allegro moderato), from the album Classical Music for Children, was released in the year 2018. The duration of the song is 3:04. Download Unknown songs online from JioSaavn.