I admit to ignorance, and even gross ignorance sometimes but not to stupidity; I leave that for others to call me. I just noticed this morning while perusing specifications of NYC Organs that St. Patrick's Cathedral, for one, has a Principal 8', an Open Diapason 1, 8" and an Open Diapason 2, 8', in the Great Division. First, I've always wondered why quite a few (especially English organs) often have two diapason choruses and secondly, why does this organ have not only that but a Principal as well!? I have never read why this would be in all the literature I've read on organs, nor has it ever been explained to me. Thus, I ask this here since this is a list started by and for organ builders.
Robert
