On May 20, 2007, at 8:52 PM, Jon Page wrote: > Are these the wretched beasts that I tried to tune > aurally back in the 80's? It pains me to recall. As I remember, when setting the initial ladder of a 3ds/6ths temperament, the C#3-F3 M3d had the same beat rate as the C#4-F4 3d. Actually achieving the flat slope of M3ds beat rates which the Baldwin 243 vertical only dreamed of. I also remember tuning the acoustically (no external speaker). Mr. Bill
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