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
Growling (wind instruments) consonance and dissonance effects produced. The technique of simultaneous playing a note and singing into an instrument is also known as horn chords or multiphonics. The most common and effective method of woodwind growling is to hum, sing, or even scream into the mouthpiece of the instrument. This method introduces interference within the instrument itself, breaking up the normal quality of sound waves produced. Furthermore, the vibration of the vocal note in the mouth and lips creates rustle noise in the instrument. The vocally produced note can be the same note (though this is believed to be less effective), a