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The key action is independent of the stop action, allowing an organ to combine a mechanical key action with an electric stop action. A key action in which the keys are connected to the windchests by only rods and levers is a mechanical or tracker action. When the organist depresses a key, the corresponding rod (called a tracker) pulls open its ...
Electro-pneumatic action. The electro-pneumatic action is a control system by the mean of air pressure for pipe organs, whereby air pressure, controlled by an electric current and operated by the keys of an organ console, opens and closes valves within wind chests, allowing the pipes to speak. This system also allows the console to be ...
Direct electric action is a systems used in pipe organs to control the flow of air (wind) into the organ's pipes when the corresponding keys or pedals are depressed. In direct electric action, the valves beneath the pipes are opened directly by electro-magnet solenoids, while with electro-pneumatic action, the electro-magnet's action admits air into a pneumatic or small bellows which in turn ...
With the application of electric power to pipe organ action, the use of tubular-pneumatic action quickly declined. An organ with electro-pneumatic action or direct electric action has the lightness of touch of a tubular-pneumatic organ, but a faster response, and the console can be in any remote location. The console can also be movable, with ...
Organ by Frobenius (2009) 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 ...
Roosevelt was particularly interested in the electric action organ, and was one of the first to study the application of new electrical devices to the manufacture of organ actions. He took out the first patent in the United States for an electric action for the pipe organ when he was 20, and built the first electric action organ in the United ...
[21] [22] [23] It remains the world's largest organ without any electric action components and is one of only two organs with a full-length 64 ft stop (the Contra-Trombone in the pedal) (click here for a sound sample). [24] (The other being the Boardwalk Hall Auditorium Organ.) Urthaburu Philharmonie Pipe Organ: France: Saint jean de luz Rieger ...
The pipe organ is a musical instrument that produces sound by driving pressurised air (called wind) through the organ pipes selected from a keyboard.Because each pipe produces a single pitch, the pipes are provided in sets called ranks, each of which has a common timbre, volume, and construction throughout the keyboard compass.