This pdf manual for a Peterson Strobe Tuner is available for download at the link below. It lists the offsets for the fundamental frequencies for several different piano styles. I use this tuner myself to intonate guitars with. You may have to copy and paste the link into your browser if it gets chopped up in the email. Hope this helps. http://www.petersontuners.com/support/pdfmanuals/PDF%20Manuals/Strobe%20Tune rs%20-%20True%20Mechanical/AutoStrobe/AutoStrobe%20490ST/490stenglish.pdf Benny L. Tucker Yamaha Factory Tuner Precision Piano Tuning & Repair Thomaston, Ga. i see. it's my own ETD i developed based on the popular requests from my Strobe Tuner users. Piano Tuner 1.0 for Mac OS X http://www.versiontracker.com/dyn/moreinfo/macosx/26163 my stretch offset table data format is just a text file with note names and offsets and looks like this: "A0"="-20.000"; "Bb0"="-19.000"; "B0"="-18.000"; "C1"="-17.000"; "C#1"="-16.000"; "D1"="-15.000"; katsura
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