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Action can refer to that of a piano or other musical keyboards, including the electronic or digital stage piano and synthesizer, on which some models have "weighted keys", which simulate the touch and feel of an acoustic piano. The design of the key action mechanism determines the "weight" of the keys, i.e., the force required to sound a note ...
The jack also bears a damper, whose purpose is to stop the vibration of the string when the key is released. For full description and diagrams, see Harpsichord. In a piano, the action is a mechanical device, made mostly of hardwoods, that serves several purposes. By means of various levers, it translates a small motion of the key into a large ...
The piano is an example of a velocity-sensitive keyboard instrument. The piano, being velocity-sensitive, responds to the speed of the key-press in how fast the hammers strike the strings, which in turn changes the tone and volume of the sound. Several piano predecessors, such as the harpsichord, were not
Pressing a key on the keyboard makes the instrument produce sounds—either by mechanically striking a string or tine (acoustic and electric piano, clavichord), plucking a string (harpsichord), causing air to flow through a pipe organ, striking a bell , or activating an electronic circuit (synthesizer, digital piano, electronic keyboard).
The action is illustrated below. Action parts: key; the portion pressed by the player is on the far right; jack; a wire with leather stud on top, known by the workmen as the "old man's head" whalebone rear guide, projects from the end of the key, works in a groove to keep the key steady; hammer; strikes the string to produce sound
The normal 88 keys were numbered 1–88, with the extra low keys numbered 89–97 and the extra high keys numbered 98–108. A 108-key piano that extends from C 0 to B 8 was first built in 2018 by Stuart & Sons. [4] (Note: these piano key numbers 1-108 are not the n keys in the equations or the table.)
The earliest known keyboard instrument was the Ancient Greek hydraulis, a type of pipe organ invented in the third century BC. [2] The keys were likely balanced and could be played with a light touch, as is clear from the reference in a Latin poem by Claudian (late 4th century), who says magna levi detrudens murmura tactu . . . intonet, that is "let him thunder forth as he presses out mighty ...
The pedal piano (or pedalier piano) [12] is a kind of piano that includes a pedalboard [13] There are two types of pedal piano: A pedal board integrated with a manual piano instrument, using the same strings and mechanism as the manual keyboard; An independent, pedal played piano with its own mechanics and strings, placed below a regular piano