<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content="text/html; charset=iso-8859-1" = http-equiv=Content-Type> <META content="MSHTML 5.00.3013.2600" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face="Californian FB">To the list</FONT></DIV> <DIV> </DIV> <DIV><FONT face="Californian FB">I am interested in rescaling an = old piano and I need to keep special attention in order to use low tension on the = strings because the piano is old and I don't want to affect it's structure.</FONT></DIV> <DIV><FONT face="Californian FB">I would like also to keep the = inharmonicity well scaled.</FONT></DIV> <DIV><FONT face="Californian FB">What is the best way to do it? To use = the Fairchild charts? To use the Piano Rebuilder's Handbook of Treble String = Tensions? There are another good charts to be used in a spreadsheet ?</FONT></DIV> <DIV><FONT face="Californian FB">I was calculating some notes and I = found that the Ic of Fairchild is quite different of the Donelson's Ic. Who is correct?</FONT></DIV> <DIV><FONT face="Californian FB">Thanks to all</FONT></DIV> <DIV> </DIV> <DIV><FONT face="Californian FB">Rogerio Cunha<BR>IC Member of the = Piano Technicians Guild<BR>Rio de Janeiro - Brazil</FONT></DIV></BODY></HTML>