William and jazz piano

Over the past couple of weeks, William has been learning some basic jazz riffs on the piano. Laura (his teacher this summer) had him videotape her playing as a guide. As the camera doesn't have an earphone and is difficult to hear, I've made him a dvd of the clips and rigged the portable dvd player to his piano. He doesn't reference the video very often, but he practices (in short bursts) multiple times per day without prompting - almost obsessively.