Ive been playing guitar casually for about 2 and a half years and just realized that I really don't know any music theory and hardly any scales, and the scales I do know, I dont even know the names of anymore. Anyways I was just playing around with one of the only scales I know(nameless scale for obvious reasons) and I actually came up with a pretty sweet solo. So in conclusion where could I go to learn some music theory and some scales and what are some of the must know scales for rythym/soloing as i play both. Also when ever you see some one go ok im playing in the key of E minor what would I do about that? How do I make my solo fit something in the key of E minor or whatever other key they might be playing in?