Listen to Harmony online. Harmony is an Unknown language song and is sung by Sleep Lullabies for Newborn. Harmony, from the album 101 Calming Sounds for Baby Dreams, Sleep Aid - Newborn Sleep Music Lullabies, Peaceful Piano Music, Relaxation Meditation and Natural White Noise, Relaxing Sleep Songs, was released in the year 2015. The duration of the song is 5:04. Download Unknown songs online from JioSaavn.