Negative Space

“…when David Tudor sat at the piano for 4 minutes and 33 seconds and never played a note, there wasn't silence. The audience could hear the sounds of nature all around them. And that's what Cage was after. He wanted his audience to listen to 4 minutes and 33 seconds of the world with the same attention and the same concentration that they would normally devote to four and a half minutes of Mozart or Beethoven or Brahms.”