Embouchure collapse Embouchure collapse Embouchure collapse is a generic term used by wind instrument players to describe a variety of conditions which result in the inability of the embouchure to function. The embouchure is the purposeful arrangement of the facial muscles and lips to produce a sound on a wind or brass instrument. In brass playing, it involves vibration of the membrane area of the lips. Embouchure collapse in its various forms and extremities generally results in difficulty in playing for extended periods (especially if playing loudly and/or in the high register) or a complete inability to play. The former applies mainly
Facial hair in the military will cover the upper lip line, extend sideways beyond a vertical line drawn upward from the corners of the mouth...or extend above a parallel line at the lowest portion of the nose." Those with skin conditions such as pseudofolliculitis barbae or severe acne are allowed to maintain short facial hair with the permission of a doctor or medic, but no shaping is allowed, only trimming with an electric razor, or approved regular razor. 1/8 - 1/4 of an inch (3.2 mm) is usually the standard for this condition. Additionally, for almost a decade, ending with a "deauthorization" order that took