Egg-Beaters on the S.I.E.

Is music just sounds?

Then what does it communicate?

Is a truck passing by music?

If I can see it, do I have to hear it too?

If while I see it I can't hear it, but hear something else, say an egg-beater, because I'm inside looking out, does the truck communicate or the egg-beater, which communicates?

Which is more musical, a truck passing by a factory or a truck passing by a music school?

- John Cage, from "Composition as  Process" (just a few of the 32 questions he asks in the essay).