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The 30-note pedalboard of a Rieger organ. A pedalboard (also called a pedal keyboard, pedal clavier, or, with electronic instruments, a bass pedalboard[1]) is a keyboard played with the feet that is usually used to produce the low-pitched bass line of a piece of music. A pedalboard has long, narrow lever-style keys laid out in the same semitone ...
A pipe organ contains one or more sets of pipes, a wind system, and one or more keyboards. The pipes produce sound when pressurized air produced by the wind system passes through them. An action connects the keyboards to the pipes. Stops allow the organist to control which ranks of pipes sound at a given time.
The console of the Wanamaker Organ in the Macy's (formerly Wanamaker's) department store in Philadelphia, featuring six manuals and colour-coded stop tabs. The pipe organ is played from an area called the console or keydesk, which holds the manuals (keyboards), pedals, and stop controls. In electric-action organs, the console is often movable.
Boardwalk Hall Auditorium Organ. The Boardwalk Hall Auditorium Organ, known also as the Midmer-Losh and the Poseidon, is the pipe organ in the Main Auditorium of the Boardwalk Hall (formerly known as the Atlantic City Convention Hall) in Atlantic City, New Jersey, built by the Midmer-Losh Organ Company. It is the largest organ in the world, as ...
The expression pedal is clearly visible directly above the pedalboard. An expression pedal is an important control found on many musical instruments including organs, electronic keyboards, and pedal steel guitar. The musician uses the pedal to control different aspects of the sound, commonly volume. Separate expression pedals can often be added ...
Tracker action is a term used in reference to pipe organs and steam calliopes to indicate a mechanical linkage between keys or pedals pressed by the organist and the valve that allows air to flow into pipe (s) of the corresponding note. This is in contrast to "direct electric action" and "electro-pneumatic action", which connect the key to the ...
The operation of a tubular-pneumatic organ is accomplished by a change of air pressure within lead tubes of about ⁄ in (0.6 cm) inside diameter that connect the organ's console to its windchest. A separate tube is needed for each manual key, pedal key and stop control on the console. A large four manual organ can require over 300 individual ...
A crescendo pedal is a large pedal commonly found on medium-sized and larger pipe organs (as well as digital organs ), either partially or fully recessed within the organ console. The crescendo pedal incrementally activates stops as it is pressed forward and removes stops as it is depressed backward. The addition of stops, in order from ...