What is another word for piano action?
Pronunciation: [pɪˈanə͡ʊ ˈakʃən] (IPA) 
The term "piano action" refers to the mechanical components of a piano that respond to the touch of the keys, ultimately producing the sound of the piano. There are several synonyms that can be used to describe this mechanism, including keyboard mechanism, key action, and piano touch. Other variations of this term might include mechanics of the piano or the piano mechanism. Regardless of the terminology used, the piano action is a critical component of every piano and is responsible for producing the tone and character that musicians associate with this beautiful instrument.
