Listen to Natural Isochronic Tones online. Natural Isochronic Tones is an Instrumental language song and is sung by Binaural Shadows. Natural Isochronic Tones, from the album Sleep Frequencies: Binaural Beats Sleeping Relaxation Music, was released in the year 2023. The duration of the song is 1:56. Download Instrumental songs online from JioSaavn.