Wintergatan is famous for making amazing marble music machines, and a weekly video of other mechanical music machines: https://www.youtube.com/user/wintergatan2000/videos One of his marble machines was exhibited at a museum just for music machines: https://www.museumspeelklok.nl/lang/en/ just one of many music museums: https://en.wikipedia.org/wiki/List_of_music_museums James Burke's "Connections" shows how cams and pegged cylinders evolved into punched card looms and tabulator cards episide 4 "Faith in Numbers" https://youtu.be/z6yL0_sDnX0?t=2150 "The Secret Life Of Machines" http://www.secretlifeofmachines.com/ explores computer history in the episode "The Word Processor" https://youtu.be/nN9wNvEnn-Q enjoy! -- Jeff Jonas