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The use of a single rank of pipes in a cinema organ to serve all the stops for a voice. Only possible using electrical control introduced by Robert Hope-Jones, it greatly reduces the number of pipes required to support, say, 2', 4', 8' and 16' stops, each of which in a traditional organ requires its own rank of pipes with as many pipes as there are keys on the manual. A single 97-pipe rank, playable at each of four pitches on each of three manuals and at three pitches on the pedal, would provide for fifteen stop tabs on the console.

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