Trumpet: The trumpet is one of the most important instruments in cool jazz. Miles Davis is one of the most famous cool jazz trumpet players.
Saxophone: The saxophone is another important instrument in cool jazz. Paul Desmond and Lee Konitz are two of the most famous cool jazz saxophonists.
Piano: The piano is often used in cool jazz to provide harmony and support for the other instruments.
Bass: The bass is used in cool jazz to provide a solid foundation for the other instruments.
Drums: The drums are used in cool jazz to provide rhythm and drive.
In addition to these instruments, other instruments such as the guitar, clarinet, and flute are sometimes used in cool jazz.