Extended Technique

Anything an instrumentalist does to create sound outside of the normal sounds of their instrument. Examples:

Multiphonics

Instruments as percussion

Prepared instruments

Prepared piano

Flutter tongue

Pitch bend and smear

A pitch bend is when an instrumentalist plays a pitch and then, through various techniques, is able ot "bend" the pitch downward. A smear is when a performer moves from one pitch ot another in one continuous smear - the normal step-wise progression is not heard.