App To Listen To Your Brain Waves

The app would have different options like sleep, focus and calm. You would put your phone to your head (which could be a problem for people with short hair) and you would hear brain waves. You could have a setting for your brain waves to be more trebly, bassy, etc. You could hear the waves weak or strong and you could have an option to set the wave speed.<br><br>Edit: I’m not sure how this would work?