Love the idea of this game, fun hard and simple at the same time. But very very frustrating if you miss a 'note' while you click in the same pattern. I get why you call 3-x The windup, because I can feel my rage coming on! No just kidding, but it might be an idea to add some checkpoints, or a variation where you passed a part of the song a few times and then you 'earn' the checkpoint. It's just annoying if you know you can get to a certain point but you have to do the rest all over again.
oh! 'earning' a checkpoint is a cool idea, Spelunky did it pretty well. Thanks for the suggestion!