Theta Brainwave Frequency Pulse

If two notes are within the critical bandwidth of tuning, the brain can't tell there's two. You'll hear one with a pulsing in it. The earliest use of that was probably shamanic drumming practices. Now we can build these pulses into musical soundtracks and cause your brainwaves to do all kinds of interesting things. And every time you listen to the soundtrack and your brainwaves go there, we're now in a gym for your brain.