Organizations
The Royal College of Organists (RCO) in the United Kingdom is the oldest institution of organ studies. From that sprang the American Guild of Organists (AGO), the Gesellschaft der Orgelfreunde e.V. (GdO) in Germany, and the Royal Canadian College of Organists (RCCO). All these institutions are oriented toward the organist involved in classical music rather than popular music. There is also the American Theatre Organ Society.
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