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Michael Whitehall writes:
Old keyboards could be set up so that pressing the C key could generate a C or an F. Early manuscripts refer to “voice” or “choir” pitch for this transposing system. The principals operated at 5’ pitch and were often doubled (in the sense of “duplicated”) -
The vocal pitch, whose lowest note consisted of a pipe “v foote or so” long, was referred to as the Principal pitch of the organ. Any other pitches were related to this norm – the term Diapason was reserved for sub-
Philip Norman dealt in some detail with the Early English Organ Project instruments based on old soundboards discovered ar Wetheringsett (c 1520) and Wingfield (c 1500) pointing out the use of doubled ranks implied by the positioning of pipe holes.
27th March 2021 – “Two Marquesses, Three Victorian Gentlemen-
From Richard's account, this is an organ well worth seeing, playing and hearing. It was a pity that the technology prevented our hearing any recordings
but hopefully that may inspire a future Association visit to what would appear to be a very fine organ indeed. I'm itching to go. Our thanks to Richard for inspiring us.