<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1264" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#d8d0c8> <DIV><FONT face=Arial size=2>You can rescale the piano without = changing the bridge.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>On a 1948 Chickering console, that is = indeed what I would recommend.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Yes you can just rescale the = bass.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>If the person doing the rescaling knows = what s/he is doing the break will either be no worse or better.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I recommend considering letting the = rescaler at least play with a little rescaling in the lower tenor. Changing a few = wires in the tenor, and perhaps even converting a few plain wire notes to wound = strings together with rescaling the bass can really help a poor tenor/bass transition.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>I've had a number of pianos rescaled, = but I don't do it myself. I have done it where the bass bridge was not altered, and = I also do it where all new bridges are used.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>So get your original scaling data = together and start talking with a good rescaler!</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Terry Farrell</FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=741662027@charter.net = href="mailto:741662027@charter.net">Cy Shuster</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, April 09, 2004 = 3:44 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Rescaling without = redoing the bridge?</DIV> <DIV><BR></DIV> <DIV><FONT size=2>I'm just wondering -- to what extent is it = feasible to rescale a piano without changing the bridge (if ever)?  = </FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>I'm thinking of replacing the bass strings on my = mom's 1948 Chickering console, which I understand is a design that could greatly = benefit from rescaling.  While replacing strings is within my skill = level, redoing the bridge is not.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>OK, I had to go look up the formula relating = string length, pitch, tension, and mass: <A = href="http://www.speech.kth.se/music/5_lectures/conklin/strings.html">h= ttp://www.speech.kth.se/music/5_lectures/conklin/strings.html</A></FONT><= /DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>Holding pitch and length constant, that leaves = tension and mass to play with, which are inversely proportional.  I've read = that this particular scale design has a high breaking strength.  Would it = sound better with heavier strings at lower tension?  And is it = practical to rescale just the bass?  There seems a danger of making the treble = break stick out even worse.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>--Cy Shuster--</FONT></DIV> <DIV><FONT size=2>Rochester, MN</FONT></DIV> <DIV><FONT size=2></FONT> </DIV></BLOCKQUOTE></BODY></HTML>