Listen to Restful Strings Pet Harmony online. Restful Strings Pet Harmony is an Instrumental language song and is sung by Christian Instrumental Guitar Music, Guitar Music! and Guitar Music. Restful Strings Pet Harmony, from the album Guitar Music Lullabies for Your Pets, was released in the year 2025. The duration of the song is 2:47. Download Instrumental songs online from JioSaavn.