Facial Muscles help maintain coordination, stability, and efficiency in trumpet playing when they function naturally and without unnecessary tension.
Many embouchure problems are caused by excess strain, improper muscular use, or attempts to force range and endurance through pressure rather than coordination. Overuse of the facial muscles often creates inconsistency and fatigue.
In the Clarke–Gordon tradition, the facial muscles work together with Wind Power, The Tongue, and the other coordinated principles of correct playing.