So, I've been playing round with binaural beats as a productivity aid. I'm not sure if it actually helps, but I do get an interesting lingering acoustic hallucination when I listen to this for more than, say, fifteen minutes, and then turn off the audio feed. (Note, you will need to listen to that with headphones, and likely with the volume turned up a bit.) I do feel ... something ... while listening. My heart rate seems to pick up and I feel what can best be described as a little anxious. I'm not sure if my focus has improved.
Would anyone else like to give a listen and provide feedback?