Listen to Extreme Relaxation online. Extreme Relaxation is an Instrumental language song and is sung by Pet Care Music Therapy. Extreme Relaxation, from the album Happy Dog - Calming Music for for Stressed Dogs & Cats, Helps with Thunderstorms, Separation, Anxiety, was released in the year 2021. The duration of the song is 4:14. Download Instrumental songs online from JioSaavn.