Allan Kozinn get’s it in yesterday’s NYTimes article about John Cage’s 4’33”.

…I sat back, closed my eyes and did what Cage so often recommended: I listened. I made no effort to separate the strands of conversation or to focus on what people were saying. I was simply grabbed by the sheer mass of sound, human and mechanical. It sounded intensely musical to me, noisy as it was, and once I began hearing it that way, I couldn’t stop.