The Cinema Organ Society (COS) was founded in 1952 by Hubert Selby and Tony Moss for those interested in organ music as entertainment. The aim of the society is to preserve and promote the presentation of these wonderful instruments for the enjoyment of existing and future generations.
It is for everyone interested in organ music as entertainment, with the emphasis on the cinema or theatre pipe organ

Pipe organ

The pipe organ is a musical instrument that produces sound by driving pressurized air through pipes selected via a keyboard. Because each organ pipe produces a single pitch, the pipes are provided in sets called ranks, each of which has a common timbre and volume throughout the keyboard compass...

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The COS is organised into a number of districts around the UK, each with its own 'adopted' cinema organ - some in working order and others undergoing restoration.