<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Tuning a Kawai Grand RX-2</title></head><body> <blockquote type="cite" cite><font face="Arial" color="#000000">...I found that the piano was able to be stably tuned by moving the pitch up</font></blockquote> <blockquote type="cite" cite><font face="Arial" color="#000000">and down without rotating the pin to find its 'center' of torque</font>...</blockquote> <div><br></div> <div>Ed, this is my pin setting routine also and only requires a medium blow</div> <div>and lighter in the last octave and low bass. The top string, as you put it,</div> <div>needs to be a little higher tension than the speaking length to hold. This</div> <div>is done by finding the center, lowering a tad and having the last motion</div> <div>of the hammer pulling the tension slightly up leaving that top string at a</div> <div>slightly higher tension due to the friction at the front terminations.</div> <div><br></div> <div>If the tension is lower, by simply 'coming down' to the pitch, the tension will</div> <div>slip through the bearing points more easily and the unison is not as stable.</div> <div><br></div> <div>Another aspect is to lock the hammer tip on the pin. This is done by lightly</div> <div>lifting the end of the hammer and moving it in the direction you want to turn</div> <div>the pin which gives you a solid hold on the pin. Maintain that grip while turning.</div> <div>Lift and lock whether you're pulling up or letting down because each is a</div> <div>different position of the end of the lever. There's usually some play between</div> <div>the tip and the pin which is good to eliminate.</div> <x-sigsep><pre>-- </pre></x-sigsep> <div><br> Regards,<br> <br> Jon Page</div> </body> </html>