<!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 6.00.2900.2769" name=GENERATOR></HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: = Arial" bottomMargin=7 leftMargin=7 topMargin=7 rightMargin=7><FONT id=rol= e_document face=Arial color=#000000 size=2> <DIV> <DIV>  <FONT size=3> By the way this doesn't work because of soundboard thinning. The board is thicker in the middle, thinner at the edge= s. Terry Farrel had it <STRONG>ALL</STRONG> right.</FONT></DIV> <DIV><FONT size=3>  This method will show positive crown even when th= ere is none. Follow me?</FONT></DIV> <DIV><FONT size=3>   Dale  Erwin</FONT></DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><= FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size= =2>Here's the method I read about:  You take a straight edge as long as the bac= k <BR>of the piano (I'm assuming they meant an upright), attach to EXACTLY 7= " blocks <BR>at a right angle to each end, then measure from the bottom of t= he straight <BR>edge to the  soundboard at the mid point.  Subtract= the middle measurement <BR>from 7" and that's the amount of crown.<BR></FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV> </DIV></FONT></BODY></HTML>