Listen to Keep Calm and Relax online. Keep Calm and Relax is an Instrumental language song and is sung by Binaural Mind Serenity Delta Theta Gamma Waves. Keep Calm and Relax, from the album Brainwave Entrainment Isochronic Tones - Delta, Theta, Alpha, Beta and Gamma Brainwaves for Deep Relaxation, was released in the year 2020. The duration of the song is 4:29. Download Instrumental songs online from JioSaavn.