Jon, forgive me, but I think you are wrong about your own abilities. You DO PLAY--I have heard you. I am talking about when it all comes together naturally and you don't have to think about each individual thing--

Where is the bow?
Where are my fingers?
Which direction is the bow going?
Is the bow going in the right direction?
Where am I in the tune?
What IS the tune?
Is my right/left hand in the correct position?

etc........There is a point when the mechanics become automatic and you stop thinking about them and just play.....learning new tunes is different, I will grant that, but after the mechanics kick over to autopilot, it's lots easier.