Aaron Copland And His World的用法和样例：
- This paper is focused on the music of the American composer Aaron Copland and his Clarinet Concerto.
- As a composer， Bernstein was greatly influenced by Aaron Copland， and resolved to go even further than his mentor in bridging classical and popular music styles.
- This will lead him to view himself and his world pessimistically.
- All the world and his wife were at the ball.