The Teanola music box - http://www.teanola.com/teanola-musical-box.htm It's identical in design to the smaller model made by the Kikkerland company, but it covers three octaves and is diatonic in D-flat. The large laminated paper strips you punch with a puncher it comes with, and you can create longer compositions by taping the strips together. In the process of making these pieces, one doesn't really think about notes per se because there's really no way to go wrong with those, but more about a feel for shapes and sequences, patterns which overlap and relate to one another and distances between things which create the rhythm. After an hour or two of punching, aside from being covered in confetti, one's perception becomes noticeably altered by the little processes which go into imagining how the music is going to sound. So, quite a nice surprise to listen to when through, and by controlling the speed of the crank, it can make for quite a nice little piece of music, resonating differently depending on what surface you set the music box on. I've found on top of the piano with the pedal down to be the best so far. After a lot of playing though the gears start to wear, and there's squeaking (warm water and WD-40 helps) and the paper strips have trouble feeding through smoothly keeping even time, but, well worth the money and experimentation.