organ [5]
Wind instrument with several keyboards; it produces sound by means of pipes that are fed by a blower.
production of sound 
The sound made by the organ pipes is generated by a supply of air from an electric blower.
blower 
Electric fan that supplies air to the bellow.
wind duct 
Pipe connecting the blower to the bellow.
wind chest 
Essential part of the organ composed of several movable and fixed elements; air from the blower passes through it before reaching the pipes.
upperboard 
Board with holes that correspond to those of the sliders and the wind chest table; the feet of the pipes sit in these holes.
rackboard 
Board with holes into which the pipes fit to hold them in an upright position.
reservoir 
Part of the bellow in which air is stored under some pressure.
bellow 
Part whose function is to compress air.
wind trunk 
Conduit that air from the bellow passes through on its way to the bottomboard.
pipework 
Collective term for the sound pipes of various shapes and sizes; there are two types: reed pipes and flue pipes.