So if you hear a C-major chord with an equal temperament, you’ve heard it a million times before and your brain accepts it. But if you hear a chord that you’ve never heard before, you’re like, “huh.” And your brain has to change shape to accept it. And once it’s changed shape, then you have changed as a person, in a tiny way. And if you have a whole combination of all these different frequencies, you’re basically reconfiguring your brain. And then you’ve changed as a person, and you can go and do something else. It’s a constant change.