Pronunciation: [pɪˈanə͡ʊ ˈakʃən] (IPA) 
The spelling of the word "piano action" is quite straightforward. The first part of the word, "piano," is spelled as it sounds, with the stressed syllable being "pi" and the second syllable being "a-no." The second part of the word, "action," is spelled similarly, with the stressed syllable being "ac" and the second syllable being "tion." Therefore, the IPA phonetic transcription for "piano action" would be /piˈænoʊ ˈækʃən/.
Piano action is a mechanism found within a piano that enables the instrument to produce sound when the keys are pressed. It is an intricate system of mechanical parts and levers that converts the pianist's finger movements into the actual striking of the strings inside the piano.
The piano action consists of several components, including the keys, hammers, and dampers. When a key is pressed down, it activates a series of levers and springs that ultimately cause the hammer to strike the corresponding string. The speed and force with which the key is pressed determine the volume and intensity of the sound produced.
The piano action also allows for a range of dynamic expression. By varying the pressure applied to the keys, a pianist can create a wide range of sound qualities, from soft and gentle to powerful and resonant. Additionally, the action includes a mechanism for releasing the key and dampening the sound after it is struck.
Piano actions can vary in design and complexity, depending on the make and model of the piano. Advanced actions often incorporate features such as adjustable touch sensitivity to accommodate different playing styles. Fine adjustments and maintenance of the piano action are crucial for ensuring optimal playability and sound quality.
In summary, piano action refers to the mechanical system that translates the pianist's touch into the striking of the strings, allowing for the production of sound and expressive playing on a piano.
The word "piano action" originates from the Italian word "azione del pianoforte". The word "azione" means "movement", "action", or "mechanism", while "pianoforte" is a combination of the Italian words "piano" (soft) and "forte" (loud), referring to the instrument's ability to produce a range of dynamic levels. Over time, "azione del pianoforte" was anglicized to "piano action", which specifically refers to the mechanical assembly within a piano that translates the depression of keys into the striking of strings, producing sound.
