organ [4]![click to hear](/images/speaker.jpg)
Wind instrument with several keyboards; it produces sound by means of pipes that are fed by a blower.
mechanism of the organ ![click to hear](/images/speaker.jpg)
All the parts between the manual keys and the pipes; in combination, they cause the organ to function.
rackboard ![click to hear](/images/speaker.jpg)
Board with holes into which the pipes fit to hold them in an upright position.
upperboard ![click to hear](/images/speaker.jpg)
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 support ![click to hear](/images/speaker.jpg)
Base on which the rackboard rests.
slider ![click to hear](/images/speaker.jpg)
Movable wooden board with holes matching those of the upperboard, making it possible to sound a specific row of pipes.
bearer ![click to hear](/images/speaker.jpg)
Each of the fixed boards between which the sliders move; their function is to guide the sliders.
bottomboard ![click to hear](/images/speaker.jpg)
Pressurized air chamber located in the lower part of the wind chest.
wind supply ![click to hear](/images/speaker.jpg)
Passage of air from the bellow to the pipe.
wind trunk ![click to hear](/images/speaker.jpg)
Conduit that air from the bellow passes through on its way to the bottomboard.
pallet spring ![click to hear](/images/speaker.jpg)
Spring that brings the pallet back into the closed position.
stop rod ![click to hear](/images/speaker.jpg)
Part controlled by the stop knob; its function is to move a slider.
stop knob ![click to hear](/images/speaker.jpg)
Device attached to a stop rod that controls the slider, which allows a row of pipes to sound or remain silent.
tracker ![click to hear](/images/speaker.jpg)
Strip of wood that is pulled by a key to control an arm.
roller board and arms ![click to hear](/images/speaker.jpg)
Group of trackers and rollers connecting the keys of a manual to the corresponding pallets.
key ![click to hear](/images/speaker.jpg)
Lever pressed by the fingers that, through various mechanisms, lowers a pallet.
manual ![click to hear](/images/speaker.jpg)
Series of keys the organist plays by hand; they control a specific group of pipes.
air sealing gland ![click to hear](/images/speaker.jpg)
Small sac of flexible skin that makes the bottomboard airtight around the rod controlling the pallet.
pallet ![click to hear](/images/speaker.jpg)
Movable piece of wood controlled by a key; when the key is lowered, air enters a passage connecting all the pipes of the same note.
wind chest table ![click to hear](/images/speaker.jpg)
Piece of wood with holes into which the sliders slide.
pipe ![click to hear](/images/speaker.jpg)
Tube in which sound is produced by a vibrating shallot (reed pipe) or by air friction in an aperture (flue pipe).