I own three keyboards: one for typing, two for playing music on. The one for typing is the only one I know how to use though, so I’m pleased with Touch Pianist. It’s a website in which you press any key in order to advance a piece of classical music one note at a time. It’s unlike Guitar Hero in that, if you stop typing, the music stops playing, but there’s still challenge if you need it in trying to match the rhythm of your key presses to that of the original piece. It’s quite lovely.