#forte-piano__fortepiano__piano__pianoforte  a stringed instrument that is played by depressing keys that cause hammers to strike tuned strings and produce sounds
  supertype:  stringed_instrument  percussion_instrument
  subtype:  grand_piano  mechanical_piano  upright_piano
  part:  fallboard  the hinged protective covering that protects the keyboard of a piano when it is not being played
  part:  keyboard  device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
     part:  action_mechanism__action  the operating part that transmits power to a mechanism; "the piano had a very stiff action"
        part:  key.lever  a lever that actuates a mechanism when depressed
  part:  piano_keyboard__pianokeyboard__fingerboard__clavier  a bank of keys on a musical instrument
  part:  soft_pedal  a pedal on a piano that moves the action closer to the strings and so soften the sound
  part:  soundboard__sounding_board  (music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument
     part:  sound_hole__soundhole  a hole in a soundboard (as of a violin) designed to resonate with the tones
  part:  sustaining_pedal__loud_pedal  a pedal on a piano that lifts the dampers from the strings and so allows them to continue vibrating

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