<html> <head> <style></style></head> <body class='hmmessage'><div dir='ltr'> David, Ron - and others...<div><br></div><div>Yes, I agree a tuning file would be better than just inharmonicity measurement.</div><div><br></div><div>David has a Verituner now, so I'd suggest going with that.  It produces target numbers for a number of partials - from 8 in the bass and midrange to just one for the top octave.  In the spirit of "more data is better" we should use all of them.  There is a data export mini-program that can dump it into a spreadsheet, but the ipod/ipad file export hasn't been released yet.  If you save the files, listing relative humidity</div><div>we should be able to get the data out painlessly at a later date.</div><div><br></div><div>Let me create a custom tuning style that should replicate a master tuning - should we stick to instruments that only have wound </div><div>strings on the bass bridge to replicate the RPT testing piano - or maybe different pianos would give us more info?  David can test the style to determine if it will meet our needs...</div><div><br></div><div>What's the "recipe"?</div><div><br></div><div>6:3 wound bass strings?</div><div>4:2 temperament and down to bass break?</div><div>2:1 to the top - starting where?</div><div><br></div><div>I assume there aren't transition sections between the different octave types?</div><div><br></div><div>If we can make this work, it bypasses needing to actually tune the piano, just step through the notes A0-C7 to gather the inharmonicity data and let the Verituner calculate...  Shouldn't take more than 10 minutes or so!</div><div><br></div><div>Ron Koval</div> </div></body> </html>