Alpha Wave ( Wave) is 8-13 Hz brain wave. As humans Alpha Wave becomes most active, which called Altered State in psychology, the subconscious sense is most active, ones inspiration and imagination become most active, and the muscles of all the body get relaxed.Alpha Wave Music is a preset message music. Its added Alpha Wave message, which to the human ear can distinguish, but does not affect the experience of the music.As professional in health area, with music healing licenses, we pick up 5 Alpha Wave Music in this collection for you to relax or sleep. Enjoy.