To understand how and why film music has changed from mickey-mousing

Music

Why would "Star Wars" or other action films have music with a fast tempo?

Which one of the films below did Hans Zimmer write music for?

To copy what the actors are saying and doing.

To help shape the scene and create the mood of the action.

Matching sound to the action in the scene.

Which of these films also uses mickey mousing?

As cartoons developed in the 1930s, what was added?