John Cage discusses music vs. noise, silence, sculpture musicale, etc.
"People expect listening to be more than listening so they speak of inner listening or the meaning of songs. When I say music, I'm talking about sound that doesn't mean anything. Something is just a sound. I love sounds just as they are. I don't need them to be something other than what they are. I don't want them to be psychological or a bucket or President or in love with another sound."
Kant said "Only two things don't have to mean anything. Music and laughter."