
TNW-17-1 | page 21 | https://thedailydialectics.com/pdfs/FIOA/TNW-17-1/TNW-17-1.pdf
1400 Barrel organ: By the fifteenth century, the roller used in music boxes to pluck notes when metal pins passed by was adapted to create the barrel organ. The barrels used in cathedrals could be as large as 10 feet in diameter. patent on the phonograph to expire in 1885, thinking the invention…