<!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 6.00.6000.16441" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>It is unusual to find a piano that does not have some sort of false beat at A4.</FONT></DIV> <DIV><FONT face=Arial size=2>Aural tuners must have learned how to get around this problem.</FONT></DIV> <DIV><FONT face=Arial size=2>Have you tried tuning the a3-a4 octave as close as you can and then testing it with the 3rd-10th test? Are the false beats interfering with the 3rd-10th test? You can also try to set your etd on a different partial.</FONT></DIV> <DIV><FONT face=Arial size=2>You can also try ghosting.</FONT></DIV> <DIV><FONT face=Arial size=2>Similar if you are checking 4ths and 5ths - if you suspect that false beats are interfering then test them with the fast beating intervals. Usually false beats in the temperament section are slow and using fast beating intervals is a way around the problem.</FONT></DIV> <DIV><FONT face=Arial size=2>Gene Nelson</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=deanslist@comcast.net href="mailto:deanslist@comcast.net">deanslist</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, June 10, 2007 7:41 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> False Beats in the Temperament Section</DIV> <DIV><BR></DIV> <DIV> <DIV>I'm looking for suggestions, guidance, admonitions, whatever, please. </DIV> <DIV> </DIV> <DIV>My piano for practicing tuning (and playing) is a 3 year old Pearl River upright (UP 118E, 47" ). It has developed murderous false beats in the temperament section making aural tuning practice impossible. The only thing I can really practice aurally at the moment is minimizing false beats in the unisons. There aren't enough intervals clean to let me get anywhere. All 3 strings on A4 are funky.  On many strings I just can't read a pitch with a resolution greater than 1 cent because of the oscillation. Some have a larger oscillation. I noticed it is much worse when the humidity increases. This piano does have a DC system that is always plugged in and working. </DIV> <DIV> </DIV> <DIV>Logically, I guess the first thing to do would be to seat the strings. This will be somewhat difficult because of the location bridge pins for these strings relative to the keybed. I have ordered Joe Goss' string seating tool to help with that. </DIV> <DIV> </DIV> <DIV>If I can't get it resolved, I'll certainly find the money in the budget to get someone from my chapter to come in and work on it. </DIV> <DIV> </DIV> <DIV>Thank you!</DIV> <DIV> </DIV> <DIV>Sara Nash</DIV> <DIV>Southeastern PA</DIV></DIV></BLOCKQUOTE></BODY></HTML>