Hey Ron, I successfully opened your .xls file... It works! The graph was hiding the data columns so I managed to put the graph on data sheet 2. I also formatted the color of the Bottom Low, Top Low, Top Medium, and Top High curves in a different color for better visual reference. I still use a DOS program that suits my needs just fine for my touch design work... I'm no expert with excel but I'd love to know more.... Questions: If I want to use fewer data points such as note# 1,22,44,66,88 how do I change to that? Visually comparing the spline points to the existing HW would be helpful. I've inserted a column with existing hammer weights on the spreadsheet. How do I get it onto the chart? My dream is to be able to click drag the spline points interactively on the chart to adjust the spline curve relative to the existing data and have the new spline points calculated after each click and drag. Any ideas how that could be done? David Stanwood
This PTG archive page provided courtesy of Moy Piano Service, LLC