After I had been studying with him for two years, Schoenberg said, ‘In order to write music, you must have a feeling for harmony.’ I explained to him that I had no feeling for harmony. He then said that I would always encounter an obstacle, that it would be as though I came to a wall through which I could not pass. I said, ‘In that case I will devote my life to beating my head against that wall.’
John CageWith just one musician, you can really do an unlimited number of things on the inside of the piano, if you have at your disposal an exploded keyboard.
John CageIf this word "music" is sacred and reserved for eighteenth and nineteenth century instruments, we can substitute a more meaningful term: organization of sound.
John Cage