Editing Overblowing (section)

{{Short description|Wind instrument playing technique}}
{{For|overblowing in the sense of exaggerating|exaggeration}}

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'''Overblowing''' is the manipulation of supplied air through a [[wind instrument]] that causes the sounded [[pitch (music)|pitch]] to jump to a higher one without a fingering change or the operation of a slide. Overblowing may involve a change in the air pressure, in the point at which the air is directed, or in the [[acoustic resonance|resonance]] characteristics of the chamber formed by the mouth and throat of the player. (The latter is a feature of [[embouchure]].)

In some instruments, overblowing involves the direct manipulation of the vibrating reed(s), and/or the pushing of a [[register key]] while otherwise leaving fingering unaltered.  With the exception of harmonica overblowing, the pitch jump is from one vibratory mode of the reed or air column, e.g., its [[fundamental frequency|fundamental]], to an [[overtone]]. Overblowing can be done deliberately in order to get a higher pitch, or inadvertently, resulting in the production of a note other than intended.