I've already posted recently about Bill Nelson, who I consider to be a rare talent, even a musical savant of sorts. Swears up and down he doesn't know any theory, is insistent about his dislike for the very idea, and is sure he has no use for it. I tried explaining how much it helped me, and how I thought that the basic (but incredibly useful) CAGED approach could make life easier and the spectrum of available ideas at hand expanded greatly. None of it sunk in; the man is set hard in his ways , but he's one of those people that can play by ear, and somehow figured out a mental map of what works for them, and manages to do amazing things. I'm 180 degress opposite of that. I want to understand what I'm doing and I want the aid of forms and basic theory .