The Italian futurist composer Luigi Russolo is one of the most influential figures in 20th century music. His work remains seldom heard, yet the debt that virtually all modern music owes to him is enormous. Russolo was the author of the 1913 manifesto
The Art of Noises, and his goal was to free music from the confine of instruments. For him, all sound could be musical sound. Declaring himself bored of Beethoven and Wagner, he called for a new music made from wheels and pistons and valves, metal shutters and doors, mechanical saws, the hubbub of crowds, from the comforting din of industry.
With his collection of Intonarumori ("noise machines"), Russolo performed several concerts throughout the '10s and early '20s. He didn't completely eschew conventional instrumentation, as
Macchina Tipografica demonstrates. A rush of wind, the human voice and a stressed and overworked piano combine to make this splendid paean to the printing press.
Actually, I'm not entirely convinced this is one of Russolo's works. It can be found
UbuWeb's Russolo page, but most other sources seem to credit it to his fellow futurist Giacomo Balla. Oh, sod it. Whatever the origin, it's a real thrill.
Luigi Russolo (or Giacomo Balla) - Macchina Tipografica(alternate download)