Playing music is not really susceptible to theory much. Circumstances affect it so much.

Younger players in this music often turn out to be middle aged; it is not a young music.

He's into music theory. Actually, he's composing stuff that's really nice, but he doesn't like it. But he's a really humble kid and even if he thinks it's really good, you won't hear him shooting his mouth off about it.

This is an extreme legal theory, and our courts should not be filled with nonsense like this.

The theory is based on the argument that any time one's context of time is limited, they will show these positive effects.

I was showing them stuff about music chords and theory. Then we'd teach them how to play lead, and do some Green Day and Red Hot Chili Peppers numbers by ear.