A study pedal is a construction used on pianos where a lap felt is pushed between the hammer and the strings. The study pedal can be locked - unlike the legacy language and the una-corda pedal. As a result of the graduation of the study pedal, all keystrokes are greatly muted and can be studied without much nuisance.
With new pianos featuring MIDI facilities (so-called Silent pianos), the study pedal turns off the strike against the strings completely; It is then possible to study with a headset.
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