Binaural beats have existed for about one hundred seventy yrs, being specific. Learned by Heinrich Wilhelm Dove in 1839, but never used. Nevertheless, in 1973 Gerald Oster published an article in Scientific American entitled "The Auditory Beats of the Mind." This has opened the doorway for more scientific analysis https://martinmsydi.tusblogos.com/13492434/theta-frequency-7hz-deep-meditation-to-manifest-abundance