What is the embouchure? The way (mouth form) in which a player applies their mouth to the mouthpiece of a brass or wind instrument, particularly in its impact on sound production. The embouchure serves as a critical regulator for the airflow generated, akin to the nozzle of a garden hose directing water flow. The power we need comes from the diaphragm muscle. The role of the mouth’s corners is primarily to uphold an airtight seal and stabilise the anterior portion of the cheeks. Internal mouth pressure varies, peaking during forceful high notes and diminishing during soft, lower tones. This is a game of finesse, not brute strength. This is a game of finesse, not brute strength. Achieving optimal outcomes necessitates a delicate balance between diaphragm muscle-driven airflow and the resistance offered by the embouchure.

The embouchure should be relaxed in the middle with comfortably firm corners. The mouthpiece is generally positioned centrally within the oral cavity, evenly distributed between the upper and lower lips. Considering the diversity in lip dimensions, facial contours, and dental anatomy, there is no justification for deviating significantly from centre alignment or displaying undue preference for either the upper or lower lip.