#keyboard  device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
  supertype:  device  an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
  subtype:  computer_keyboard  piano_keyboard  typewriter_keyboard
  member:  key.lever
  part of:  electronic_computer  pipe_organ  forte-piano  terminal  typesetting_machine  typewriter
  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

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