From one sustained melodic line to the layered voices of a full organ, the instrument brings together the organist’s choices, the flow of wind and the acoustics of its room. 🏷️ INSTRUMENT PROFILE Name Pipe organ; the word “church organ” reflects an important historical setting, though organs are also heard in concert halls. Organological family A pipe aerophone played from keyboards; grouped with keyboard instruments in a practical index. Sound production Wind under controlled pressure sets a column of air in a flue pipe vibrating or excites the metal tongue of a reed pipe. Controls One or more manuals, often a pedalboard, stops, and, on some instruments, expression controls. Principal parts Console, wind supply, windchests and valves, ranks of pipes, and the action connecting keys to valves. Materials Wood and metal alloys for pipes; wood, metal, leather, and other materials for mechanisms, according to the instrument. Range Depends on the individual...