multiphonics

techniquesmul-tee-FON-iksfrom English

A technique for producing multiple notes simultaneously on a wind instrument.‌​‌​‍​‍​‍​‍​‌​‌​‍​‍​‍​‍​‍​‍​‌​‍​‌​‍​‍​‍​‌​‌​‍​‍​‍​‍​‍​‍​‌​‌​‍​‍

In Depth

Multiphonics is an extended technique for wind instruments that produces two or more pitches simultaneously from a single instrument.‌​‌​‍​‍​‍​‍​‌​‌​‍​‍​‍​‍​‍​‍​‌​‍​‌​‍​‍​‍​‌​‌​‍​‍​‍​‍​‍​‍​‌​‌​‍​‍ On woodwinds, this is achieved through special fingerings and embouchure adjustments that cause the air column to vibrate at multiple frequencies at once. The resulting sound is complex, often rough and otherworldly — far from the clean, single-pitch tone these instruments normally produce. Multiphonics became an important tool in avant-garde and contemporary classical music from the mid-20th century onward. Composers like Luciano Berio and Helmut Lachenmann explored the technique extensively, and it has since entered the standard vocabulary of extended techniques.
Did you know?

A skilled saxophonist can produce up to four distinct pitches simultaneously through multiphonics — a feat that seems to violate the basic physics of a single-bore instrument.

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