Listen to Harp (Background Music for Sleeping) online. Harp (Background Music for Sleeping) is an Unknown language song and is sung by Sleep Music Lullabies. Harp (Background Music for Sleeping), from the album Sleep Music - 80 Sleeping Songs, Soft and Slow Relaxing Music for a Deep Sleep & Good Night, was released in the year 2016. The duration of the song is 4:36. Download Unknown songs online from JioSaavn.