Listen to Calmness and Serenity Relaxation Music online. Calmness and Serenity Relaxation Music is an Instrumental language song and is sung by Yoga Nidra. Calmness and Serenity Relaxation Music, from the album Yoga Stretch Music: Relaxing Meditation Music to Improve Stability, Mobility & Flexibility, was released in the year 2021. The duration of the song is 5:34. Download Instrumental songs online from JioSaavn.