By the way, I don't think that first-rate jazz guitarists play patterns. They actually think theory as they play.
I bet that's not really quite true. First off, if they have to
think at all, they're not making it. The theory needs to be so ingrained that it's second nature.
And patterns are the way the fingers learn where everything is. One can appear to be pattern-free but it's only a matter of degree. I imagine sometimes the best guys play so freely that everything they play they have never played before. But I bet those nights are rare even for the best, and they usually play stuff they've worked out. Besides, that's a big part of what makes an individual's style -- the particular phrases that you tend to use a lot.
I've heard it said that in all of the material Charlie Parker ever recorded, you could break all the solos down to about 200-odd different patterns, played at different tempos and in different orders, maybe starting and stopping late or early.
I would say that the first-rate jazz guitarists have an uncanny sense of phrasing and putting the notes and patterns together in a way that sounds natural, personal, and compelling. It's like the difference between the way people talk -- everyone knows the same words but some people just put them together in such a perfect, sensible, interesting way, and with such compelling phrasing and style, while others just talk and talk and make you yawn.
ALl the great players I've ever heard interviewed say that they work at this stuff from very simple constructions so they don't have to
think about what they play... the thinking comes during learning, analyzing stuff, and trying to implement ideas during practice ("woodshedding"), and when writing and arranging... When they are on the gig or in the studio, they try
not to think at all...
There
are probably people who know so much theory that no one could touch them, and they can actually think of ten different things they can try over the chords that are about to come up, and hear what the piano player just decided to do and thereby react to it, turning on a dime... but it won't sound very good no matter how they try, because they don't have the key elements that make a great improvisor. It's not knowledge, though knowledge doesn't hurt.