Listen to La Rondine - Chi il bel sogno - Adagio (no vocals) online. La Rondine - Chi il bel sogno - Adagio (no vocals) is an English language song and is sung by John Landor and Bulgarian National Radio Symphony Orchestra. La Rondine - Chi il bel sogno - Adagio (no vocals), from the album Karaoke Opera: Soprano Passions, was released in the year 2009. The duration of the song is 3:18. Download English songs online from JioSaavn.