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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 ...
Hammer action keys use some kind of mechanism to replicate the action of a mechanical piano. This is often achieved with some kind of lever mechanism connected to the key. Graded hammer action keys do what hammer action keys do, but also has a different feel on the low versus high notes as on a mechanical piano keyboard. The lower note keys ...
Some modern pianos have even more notes (a Bösendorfer 290 "Imperial" has 97 keys, and a Stuart & Sons model has 108 keys [1]). While modern synthesizer keyboards commonly have either 61, 76 or 88 keys, small MIDI controllers are available with 25 keys (digital systems allow shifting octaves, pitch, and "splitting" ranges dynamically, which ...
Rocky Mount Instruments (RMI) was a subsidiary of the Allen Organ Company, based in Rocky Mount, North Carolina, active from 1966 to 1982.The company was formed to produce portable musical instruments, and manufactured several electronic pianos, harpsichords, and organs that used oscillators to create sound, instead of mechanical components like an electric piano.
The company began to specialize in manufacturing ivory piano keys in 1839 [4] and eventually piano action mechanisms. The company made its first screwdrivers in 1834 but stopped in 1840, instead selling the handles and blades to smaller companies made at the Pratt, Read and Company Factory Complex .
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The typical Disklavier is a real acoustic piano outfitted with electronic sensors for recording and electromechanical solenoids for player piano-style playback. Sensors record the movements of the keys, hammers, and pedals during a performance, and the system saves the performance data as a Standard MIDI File (SMF). On playback, the solenoids ...