I should have said in my previous message ...The manuscript also has a
drawing of a spinet. Instead of having alternate
groups of two and three black keys it has three consecutive groups of THREE
black
keys. (upper case used for emphasis). Perhaps it was microtonal! Or had
alternate keys for A flat and G
sharp and so on. I think not.
Monica
As an old printer myself (20 years in the offset lithography trade) I can
tell you that too many left-handed pipe organs- (or lutes with bass
extensions) in a picture definitely raises a red flag or two.
What Michael thinks is a widely spaced 4th course is really a single 1st
course.
The manuscripts both reproduce a drawing of an organ. This has the pipes
the wrong way round -the shortest on the left, the longest on the right.
This is a common error in engravings.
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