" According to preliminary research, analysis, and professional discussions by Walton, Koehler, Reid, et al., on the web, A=440Hz frequency music conflicts with human energy centers (i.e., chakras) from the heart to the base of the spine [the lower four]. Alternatively, chakras above the heart are stimulated. Theoretically, the vibration stimulates ego and left-brain function, suppressing the “heart-mind,” intuition and creative inspiration. " I don't know what to comment on this. More info on this website.