From: Keith Roberts [mailto:keithspiano at gmail.com] Sent: Friday, October 01, 2010 2:04 PM To: Delwin D Fandrich; College and University Technicians Subject: Re: [CAUT] Bridge root material At first I thought it was dim light and yellowing shellac that had confused me. So I sanded it down a little and it looks like Oak to me and my buddy. It is a German Piano and so must be of European origin. But then again, Hemholtz used holes to isolate frequency and project sound directionally. That holes are a sound absorbing medium is not true. They are a heat absorbing as insulation but all insulations do not make great sound barriers. Still, it's probably not as good KR Seriously, I can't see it mattering all that much. They both have about the same mass, stiffness and internal resistance and not much else seems to matter. Delwin D Fandrich Piano Design & Fabrication 620 South Tower Avenue Centralia, Washington 98531 USA del at fandrichpiano.com ddfandrich at gmail.com Phone 360.736.7563 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20101001/6e1bc1b4/attachment.htm>
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