Listen to Piano & Cello Lullaby online. Piano & Cello Lullaby is an Unknown language song and is sung by Happy Children Music Zone. Piano & Cello Lullaby, from the album Lullaby Piano Music - Healing Background Music, Baby Sleep Music Lullabies, Sweet Bedtime Piano Songs & Soothing Music Relaxation, was released in the year 2015. The duration of the song is 3:10. Download Unknown songs online from JioSaavn.