Thanks Paul Its a Kawai SK7. The tuning pins are good and the piano is well kept in an a/c environment. It is use in a concert hall setting. Lim Sent from my BlackBerry Wireless Handheld Powered by Gee! from StarHub -----Original Message----- From: "Paul McCloud" <pmc033 at earthlink.net> Sender: pianotech-bounces at ptg.org Date: Tue, 21 Sep 2010 04:19:06 To: limhseng at gmail.com,<pianotech at ptg.org> Reply-To: pmc033 at earthlink.net, pianotech at ptg.org Subject: Re: [pianotech] Tuning stability problem Hi, Lim: I've not seen any stability problems with pianos on stage trucks (trolly). You might try tightening the bolts, but I don't see how a stage truck would alter the tuning. You might look at other factors like temperature changes or air movement over the piano as you tune. Is there direct sun on the piano? Stage lights? Did you move the piano just before tuning? I've not tuned one of these, so I couldn't comment on how they tune. Some Kawai pianos are challenging to tune, hard to dial in unisons, etc. Maybe Don Mannino can jump in here. (SK-7 is Shugeru Kawai, no?) Paul McCloud San Diego > [Original Message] > From: <limhseng at gmail.com> > To: <pianotech at ptg.org> > Date: 09/21/2010 4:00:01 AM > Subject: [pianotech] Tuning stability problem > > Hi > When a grand piano sits on a Y type trolly, will there be tuning stability problems? I tuned a SK7 which sits on a Y trolly and I have a hard time on the octaves and unisons from key 55 onwards. > > Regards > Lim > Sent from my BlackBerry Wireless Handheld > Powered by Gee! from StarHub
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