Player pianos used a similar principle, but the notes were recorded on large sheets of paper, where a holes were punched in the paper to indicate which note strikes and when. By carefully coordinating the arrangement of holes, entire songs can be composed. Some consider this technique -- especially when it was applied to automated looms -- to be the world's first software.
This music box kit works like a miniature player piano. There are no pins, but a strip of paper, into which you punch holes yourself. That's right... you punch your own songs! You can replicate your favorite tunes or compose new ones. The possibilities are endless. In theory you can program your music box to play everything from classical, to country, to heavy metal, to TV commercial jingles.
In this kit, you get the music box mechanism (2 octaves in the key of C), the specialized hole punch, "Happy Birthday" pre-punched song strip, 3 blank song strips, and instructions. You can order additional paper strips for your magnum opus. A very novel, but at the same time historical, mechanical music toy.
Here is where you purchase your own DIY Programmable Music Box.