<HTML><HEAD> <META charset=US-ASCII http-equiv=Content-Type content="text/html; cha= rset=US-ASCII"> <META content="MSHTML 6.00.2800.1170" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #fffff= f"> <DIV> <DIV>In a message dated 4/14/04 10:35:49 AM Central Daylight Time, claviers@= nxs.net writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue = 2px solid"><FONT face=Arial>It is amazing at how close the piano will come= back to the same pitch at a<BR>different temperature, provided the temperat= ure is stable during the tuning<BR>process, while it is being used, and all = parts of the piano are at the same<BR>temperature in each case.  The id= eal situation is to tune the piano at the<BR>temperature it will be used, bu= t sometimes that isn't practical.  The big<BR>"NO NO" is for the temper= ature to be changing while the tuning is going on.<BR>That will get you a ba= d tuning every time, especially if you are using an<BR>ETD.<BR><BR>Jim Ellis= </FONT></BLOCKQUOTE></DIV> <DIV>I can attest to the temperature change effect on a piano. It was t= he middle of January in St. Louis about 20 years ago, when three of us were = master tuning a Kawai grand in a large sanctuary of a church. I had mad= e arrangements for the janitor to turn the heat on at 8, and we st= arted at about 10 AM. By about 1 PM we were working on the upper regist= ers, doing checks with the middle. But we were having a hell of time making = intervals match. We rechecked the middle, and it had drifted. All of a sudde= n we noticed that the temperature in the sanctuary had dropped about 5 degre= es. Apparently the janitor shut down the heat when he left at noon, and didn= 't tell us. Needles to say, we had to stop the master tuning.</DIV> <DIV> </DIV> <DIV>Wim </DIV></BODY></HTML>