Brass Instrument Sound Production, continued

 

Brass instruments are tuned using a tuning slide. This piece of tubing can be pulled out or pushed in to control the base tuning of the instrument. Then the valves and slides can be used to produce the individual notes.

Brass instruments also make use of mutes. These devices are inserted into the bell of the instrument and alter the sound. It makes the sound less bright and intrusive. It mellows out the typical brass instrument sound.