About a week ago, I was in my home music studio and was reading the article about Brainwaves.
As you know, a different sound can change the emotional state.
Here are some examples of sounds, that I made using a synthesizer.
theta waves: deep sleep
alpha waves: relaxing
beta waves: normal waking
Listen and see yourself, how does it affect to emotional state.
The best listening in headphones.
Also, I made musical file, using beta waves modulation.
Here is the result of work: