The next exercise is probably the most important of all of these, if you just take one thing away. This is listening positions -- the idea that you can move your listening position to what's appropriate to what you're listening to. This is playing with those filters. Do you remember, I gave you those filters at the beginning. It's starting to play with them as levers, to get conscious about them and to move to different places. These are just some of the listening positions, or scales of listening positions, that you can use. There are many. Have fun with that. It's very exciting.