Listen to Restful Guitar Pet Harmony online. Restful Guitar Pet Harmony is an Instrumental language song and is sung by Guitardogs, The Guitar Brothers and Guitar Quartet of Coimbra. Restful Guitar Pet Harmony, from the album Tranquil Guitar Music for Dogs��� Relaxation, was released in the year 2025. The duration of the song is 3:01. Download Instrumental songs online from JioSaavn.