Just curious, what's the end goal? What is "playing by ear" going to allow you to do that you can't do now. I think what Jon is saying is really relevant. You hear about some people, and people saying "that guy has a really good ear"... but that's probably just a combination of experience and natural talent. But if its a real battle for you, and it sounds like you're not enjoying it, is there really a good, clear reason why you're going after it?