How it’s Made - Trombones
The trombone is a musical instrument in the brass family. Like all brass instruments, it is a lip-reed aerophone; sound is produced when the player??™s buzzing lips cause the air column inside the instrument to vibrate.

The trombone is a musical instrument in the brass family. Like all brass instruments, it is a lip-reed aerophone; sound is produced when the player??™s buzzing lips cause the air column inside the instrument to vibrate.