<!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 6.00.2900.2802" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hi Philippe.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>One quick test would be to switch the Ax hammer with it's neighbour, the Bbx hammer, see what happens.  This way you will see if it is the hammer or not.  If not, we have one more mystery at hand.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Best regards.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Stéphane Collin.</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>What I observed is that A3 or A4 was brighter than the other notes, which I</FONT></DIV> <DIV><FONT face=Arial size=2>first suspected as an need for voicing the hammer, but then i observed</FONT></DIV> <DIV><FONT face=Arial size=2>that the A's above were brighter too... So, as I felt hard to believe the Idea </FONT></DIV> <DIV><FONT face=Arial size=2>of an illness specific to A strings, I wondered if the problem really </FONT><FONT face=Arial size=2>from </FONT><FONT face=Arial size=2>the </FONT></DIV> <DIV><FONT face=Arial size=2>hammers, or could instead come from a specific resonance of the piano </FONT></DIV> <DIV><FONT face=Arial size=2>itself on </FONT><FONT face=Arial size=2>that frequency and the harmonics...</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Your opinions ? possible ? not possible ? should I suspect the previous </FONT></DIV> <DIV><FONT face=Arial size=2>work ?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Philippe</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV></BLOCKQUOTE></BODY></HTML>