"American organ?"

Not quibbling, just curious. Considering that the organ has been an integral part of the architecture of churches and cathedrals throughout continental Europe for centuries, I would find it most odd if I were to suddenly, in my advanced years, to learn that the organ was not a part of church services in the British Isles. Especially in the light of THIS.

And was there not quite a large number of composers, English and otherwise living in England (Handel, composer of The Messiah, for example: German born but lived most of his life in England), who wrote reams and stacks of liturgical music? I can't believe that this music was never performed until recently. . . .

What distinguishes an American organ from the organs that, say, Bach, Buxtehude, and others played and composed for? Indeed, what is an American organ? The Estey reed pump organ, often used in camp meetings on the American frontier? The Hammond electric, sometimes found in cocktail lounges and/or used by rock bands?

Don Firth