OK. Let me rephrase that: Seriously, given the number of strings found in the piano and considering the mass of these strings and their tensions along with the force with which they bear down against the bridges and, hence, the soundboard, along with the relatively high mass and stiffness of the soundboard/bridge and ribs system I can't see it mattering all that much. Both woods have about the same mass, stiffness and internal resistance and in a piano-as compared with other stringed musical instruments such as the violin or the guitar-with the relative high stresses and energy levels involved not much else seems to matter. ddf 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 From: Keith Roberts [mailto:keithspiano at gmail.com] Sent: Friday, October 01, 2010 2:49 PM To: Delwin D Fandrich Cc: College and University Technicians Subject: Re: [CAUT] Bridge root material It really seems to me that sound transmission in wood is a product of grain structure, curing process and coatings. There is a guy up here who builds guitars worth 50K to 100K that make a Martin sound small. He was telling a guy all the different prep he does to the surface. I think he builds up layers of a super hard surface over specially cured, treated and cured again wood. Thanks Keith On Fri, Oct 1, 2010 at 2:35 PM, Delwin D Fandrich <del at fandrichpiano.com> wrote: 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. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20101001/23d2db6f/attachment.htm>
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