Conlon Nancarrow wrote music unplayable by human beings, then punched cards for player pianos so that the music could be heard. It is rocking and puts a smile on my face. Not at all as frightening as you might think.
Gyorgy Ligeti discovered some piano pieces in a Paris record store in 1980 and became an early champion, calling the composer “the greatest discovery since Webern and Ives.” Subsequent admirers included John Cage (“Conlon’s music has such an outrageous, original character that it is literally shocking”) and Frank Zappa (“The stuff is fantastic … You’ve got to hear it. It’ll kill you”).
via Boing Boing