David asks: <<In other words for a SAT user: I would add 3 cents to A# reading, subtract 3 cents from B reading etc?>> Yes, the offsets are to be used to alter an ET tuning. You can and and subtract the values for interval size, i.e. the C is raised 4 cents and the E is lowered by 2 cents, then you have a reduction of 6 cents in the C-E third, which since it was 13.7 cents wide to begin with, ends up near to an eight cent third. Regards, Ed Foote RPT
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