Listen to Sweet Lullaby online. Sweet Lullaby is an English language song and is sung by Relaxing Piano Music Consort, Relajacion Del Mar and Entspannungsmusik. Sweet Lullaby, from the album Relaxing Piano Music Inspirational Classical Piano Pieces, was released in the year 2016. The duration of the song is 1:53. Download English songs online from JioSaavn.