My main motivation is two-fold. One is playing with others. I’ve joined an amateur orchestra. We rehears every Saturday morning (with a break in the summer), and I hate to get to rehearsal to sight read. My pride doesn’t let me do that. ^_^
I’ve also joined a fiddle jam group – we get together two Sunday evenings in the month. I’m finding that my tune memory is not what I want it to be, so that’s another bit I’m working on.
The second motivation is pieces that I love to play. I’m working on several right now – the Bach Double Concerto, an arrangement of Bach’s “Little Fugue,” and my performance piece for next year, a short concerto by Accolay are just some of them.