In jazz, you listen to what the bass player is doing and what the drummer is doing, what the pianist and the guitarist is doing, and then you play something that compliments that, so you are thinking simultaneously and thinking ahead.
Obviously classical music tends to be stuff that is usually at least a hundred years old.
The very first time I was on a car in Atlanta, I saw the conductor - all conductors are white - ask a Negro woman to get up and take a seat farther back in order to make a place for a white man. I have also seen white men requested to leave the Negro section of the car.

