Joining the Professional Division and attending the 1989 Professional Seminar familiarized me with Hemi-Sync and the new Metamusic products. Metamusic and H-Plus became integral parts of my super learning workshops. My students gave me feedback on Hemi-Sync's benefits and limitations. These are thoroughly addressed in Using the Whole Brain , edited by Ronald Russell. So I'll focus on why a new Metamusic was desirable as well as it's evolution.
Music easily anchors new information by widespread stimulation of neuronal pathways.
It is the only outside stimulus which automatically synchronizes the two brain hemispheres. However, music reaches far beyond the cerebral hemispheres. Simultaneously with side to and front to back stimulation, a top-down process runs the limbic brain, where our emotions are triggered. This emotional energy affects the immune system chemistry. Here is scarcely a single function of the physical body that cannot be affected by musical tones.