<html> <body> Hi David, Thanks for the diagram.  It's a very clever way to visually represent tuning Brian Capleton's temperament scale (I got both his books).  I'll soon be applying the technique to some other temperaments I've been working on.  However, I have what is probably a pretty stupid question.  What are the red dashed lines?  It's probably obvious but I just don't see it. Thanks, Chet Kieffer At 02:53 PM 9/2/2007, you wrote: I was interested in the scheme for tuning the temperament scale in the Capleton book. Yesterday I sat with a sheet of paper, a pencil and a couple of pens, and converted it into a diagramme, herewith! David. </body> </html>