![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Trumpet_mouthpiece_2.jpg/640px-Trumpet_mouthpiece_2.jpg&w=640&q=50)
Mouthpiece (brass)
part of a brass instrument / From Wikipedia, the free encyclopedia
A brass mouthpiece is the part of a brass instrument that a player blows into to make a sound. The purpose of a mouthpiece is to send vibrations down the instrument to make a musical note.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Trumpet_mouthpiece_2.jpg/640px-Trumpet_mouthpiece_2.jpg)
Larger mouthpieces are used on larger instruments, and smaller ones are used on smaller instruments. This is because a larger mouthpiece makes a lower sound, and a smaller mouthpiece makes a higher sound, and bigger instruments make lower sounds and smaller instruments make higher sounds.