Category
page 1Pipe organ components
organ stop
part of a pipe organ
organ pipe
musical instrument part
pedal keyboard
musical keyboard played with the feet, usually used for low-pitched notes
swell
division on pipe organ

action
system of transmission between keys pressed by the organist and airflow in the pipes
organ console
musical instrument part
Tremulant
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thumb|165px|"Geschwinder Tremulant" (fast tremulant) stop on the Herbst-Orgel Lahm in Itzgrund (built in 1732).
thumb|165px|Tremulantat using spring-loaded flap, on the Jens Steinhoff organ in Varna, Bulgaria
reed pipe
type of organ pipe
Crescendo pedal
Pedal on a pipe organ
flue pipe
type of organ pipe
fipple
thumb|Mouthpiece of a Catalan Recorder (musical instrument)|recorder
electro-pneumatic action
system of pipe organ control
expression pedal
pedal on pipe organ to control swellbox