<pre style="color: rgb(0, 0, 0); font-size: 9pt;"><tt> The pedal in question is a Mandolin Attachment that has little wooden "balls" hung on loops of string. When the pedal is activated the little "balls" are place in contact with the strings. The vibration of the string energy makes the little "balls" bounce on each individual string and it sounds like a mandolin. As I recall the</tt></pre>Yes and a very cool sound it is too. I think all Yamahas Diklaviers should have one. Where do I get the tiny wooden balls <div>  I'll make a retro fit kit, we'll go into production next week....probably nahhhh tt <div> <div style="clear:both">Dale Erwin R.P.T. Erwin's Piano Restoration Inc. Mason & Hamlin/Steinway/U.S. pianos www.Erwinspiano.com Phone: 209-577-8397 <tt><tt>     </tt></tt> </div> <div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message----- From: Joseph Garrett <joegarrett@earthlink.net> To: pianotech <> Sent: Thu, Jan 31, 2013 12:07 am Subject: Re: [pianotech] Crown Upright Question from the Dark Side <div id="AOLMsgPart_0_2747d8f2-70ce-42e6-b87c-e9c6717c8039" style="margin: 0px;font-family: Tahoma, Verdana, Arial, Sans-Serif;font-size: 12px;color: #000;background-color: #fff;"> <pre style="font-size: 9pt;"><tt>The following was gleaned from the Dark Side: "5.From: Roger Aycock Posted: Wednesday January 30, 2013 4:11 PM Subject: Crown upright Message: Hey everybody, I have a George P. Bent "Crown" upright that has four pedals that I am rebuilding. This is the first time I ran into a four pedal piano. The first one is the sustain, the second one operates the mute rail, the third one is the one I have no clue about, and the fourth one is the soft pedal that pushes the hammer rail forward. When the hammer rail is pushed forward, there is also a compensator rod that takes up the lost motion as the rail goes forward. The second and third pedals have a slide notch to the left so that these pedals can be held down while playing. The linkage that is still on the piano operates over on the treble side of the piano and it PULLS down when the pedal is depressed and it is missing. Does anyone have a clue of what the function of this pedal is? It is definitely not a sostenuto." Hopefully, you are a "duo-member"<G> The pedal in question is a Mandolin Attachment that has little wooden "balls" hung on loops of string. When the pedal is activated the little "balls" are place in contact with the strings. The vibration of the string energy makes the little "balls" bounce on each individual string and it sounds like a mandolin. As I recall the rail that holds the "balls" pivot to get them in position. Hope that helps. (or maybe falls on deaf ears, as usual) Joe Joe Garrett, R.P.T. Captain of the Tool Police Squares R I <a href="http://gpianoworks.com/" target="_blank">http://gpianoworks.com/</a> </tt></pre> </div>  </div> </div> </div>