Thanks for your reply Chirs! Your lessons have really helped me out so far. So, is there a way to communicate which way a particular tune is going to go, say maybe if someone is sitting in with a band? I can't just tell them it's a D# Blues, because it, or any other key, could go either way. I did notice, however, that playing both ways at the same time still sounds good, so maybe it doesn't really matter.