This may be a much simpler question than I think it is but I want to ask it anyways. As someone who has grown up playing classical piano, I know music theory fairly well. Of course, a 3 year hiatus from classical music has gotten me a little behind and I don't remember everything. In any case, it's very easy to find reading/learning materials on the basics of music theory (the staff, notes on the staff, all the way to intervals, and inversions of chords and intervals and such and such), but what about after that? What do you do with the knowledge we have of music notation and theories? I feel that we would be missing out on a lot if we only took music theory as a way to name things, right? So, in your studies of music theory, what do you do after the so-called basics?