Your embouchure describes the way your lips and facial muscles form around a mouthpiece. The word comes from the French root word for “mouth.” A good embouchure allows for full range and tone while reducing strain or injury.
While your embouchure is important for all wind instruments, it plays a significant role in the brass family. Your embouchure provides the necessary vibrations to produce sound, so a weak embouchure means weak sound. There are a lot of different ideas about what the “correct embouchure” entails. Your instructor will teach you how to form a comfortable embouchure and how to use it to adjust tone and volume.