<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=US-ASCII"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR></HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; = FONT-FAMILY: Arial" bottomMargin=7 leftMargin=7 topMargin=7 rightMargin=7> <DIV dir=ltr align=left><SPAN class=421534119-02012006><FONT face="Comic Sans MS" color=#000080 size=3>Yes, mass does make a = difference. Check the archives, I've written on this in the past. As have others.</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=421534119-02012006><FONT face="Comic Sans MS" color=#000080 = size=3></FONT></SPAN> </DIV> <DIV dir=ltr align=left><SPAN class=421534119-02012006><FONT face="Comic Sans MS" color=#000080 size=3>Del</FONT></SPAN></DIV> <DIV dir=ltr align=left><SPAN class=421534119-02012006> <P><FONT size=2>Delwin D Fandrich<BR>Piano Design & = Fabrication<BR>620 South Tower Avenue<BR>Aberdeen, Washington 98520  USA<BR>Phone  360.736-7563<BR><<A href="mailto:fandrich@pianobuilders.com">mailto:fandrich@pianobuilders.= com</A>><BR><<A href="http://www.pianobuilders.com/">http://www.pianobuilders.com</A>&g= t;<BR></FONT></P></SPAN></DIV><BR> <BLOCKQUOTE dir=ltr style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000080 2px = solid; MARGIN-RIGHT: 0px"> <DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left> <HR tabIndex=-1> <FONT face=Tahoma size=2><B>From:</B> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <B>On Behalf Of </B>Byeway222@aol.com<BR><B>Sent:</B> December 31, 2005 5:58 = PM<BR><B>To:</B> pianotech@ptg.org<BR><B>Subject:</B> Re: Up & down vs; side to = side string motion was;false beats from ?? -...<BR></FONT><BR></DIV> <DIV></DIV><FONT id=role_document face=Arial color=#000000 = size=2> <DIV>RicB's comment about 'adding mass'  to the bridge pin by = pushing (for instance) a screwdriver blade against, it or on top of it, = suggests that maybe thicker/longer/heavier bridge pins may work better in the top regions.  Even the lightest pressure on my Bechstein 'B' top = treble bridge pins eliminates the false beating.  Translating this into permanancy is the next question.  I currently tune a Stuart piano where this type of falseness is unknown.  OK, the = construction of these instruments is very different, but there is certainly a = considerable amount of 'mass' in the bridge aggraffes through which the strings = pass.  Is this a clue?</DIV> <DIV> </DIV> <DIV>ric</DIV></BLOCKQUOTE></FONT></BODY></HTML>