<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top" style="font: inherit;"><div>Thanks, Del!<br /></div></td></tr></table> <div id="_origMsg_">
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<span style="font-weight:bold;">From:</span>
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Delwin D Fandrich <del@fandrichpiano.com>; <br>
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<span style="font-weight:bold:">To:</span>
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<caut@ptg.org>; <br>
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<span style="font-weight:bold:">Subject:</span>
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Re: [CAUT] Fwd: Mason & Hamlin soundboard model with tuning fork <br>
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Wed, May 23, 2012 5:28:52 PM <br>
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<td valign="top" style="font:inherit;"><div class="WordSection1"><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'>1) Yes, it is called a “crown retention system” but, because of the shape and construction of the ribs, it cannot do this. Set up the experiment yourself and you’ll see why. M&H soundboards—along with those of many other piano makers—generally do retain their crown over the years but this is due to the fact that the ribs themselves are crowned prior to being glued to the soundboard panel. </span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'>2) Many who have been thinking about this phenomena have been questioning the need for crown. It is essential to the performance of compression-crowned
soundboard systems; less so, if at all, with rib-crowned systems. Ribs can easily be designed to provide the stiffness required to control the impedance of the soundboard system. Soundboard systems without crown have been built that operate successfully as long as the string-to-bridge interface is properly controlled. There is growing evidence that flat soundboard systems that are forced into a “reverse-crown” configuration by applied string bearing may end up working just as well. There is very little published research on this.</span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'>3) The spider does add stiffness to the rim (although with M&H rims being as massively built as they are additional stiffness hardly seems necessary). Some of us have tried removing the tension on the legs of
the spider and, to my knowledge, no one has yet to be able to hear the difference. I don’t know of anyone who has tried recording and analyzing the before and after tone produced with these experiments with anything approaching sophisticated spectrum analyzers. </span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'>ddf</span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal"><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Delwin D Fandrich</span><span style='font-size:10.0pt;font-family:"sans-serif";color:#632423;'></span></p><p class="MsoNormal"><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Piano Design & Fabrication</span><span
style='font-size:10.0pt;font-family:"sans-serif";color:#632423;'></span></p><p class="MsoNormal"><span style='font-size:10.0pt;font-family:"sans-serif";color:#632423;'>6939 Foothill Court SW, </span><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Olympia, Washington 98512 USA</span></p><p class="MsoNormal"><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Phone 360.515.0119 — Cell 360.388.6525</span><span style='font-size:10.0pt;font-family:"sans-serif";color:#632423;'></span></p><p class="MsoNormal"><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'><a rel="nofollow" ymailto="mailto:del@fandrichpiano.com" target="_blank" href="javascript:return"><span style='color:blue;'>del@fandrichpiano.com </span></a></span><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>— </span><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'><a
rel="nofollow" ymailto="mailto:ddfandrich@gmail.com" target="_blank" href="javascript:return"><span style='color:blue;'>ddfandrich@gmail.com</span></a></span><span style='font-size:11.0pt;font-family:"sans-serif";color:navy;'></span></p><p class="MsoNormal"><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal" style='margin-left:36.0pt;'><b><span style='font-size:10.0pt;font-family:"sans-serif";'>From:</span></b><span style='font-size:10.0pt;font-family:"sans-serif";'> caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] <b>On Behalf Of </b>Euphonious Thumpe<br><b>Sent:</b> Wednesday, May 23, 2012 5:49 AM<br><b>To:</b> caut@ptg.org<br><b>Subject:</b> Re: [CAUT] Fwd: Mason & Hamlin soundboard model with tuning fork</span></p><p class="MsoNormal" style='margin-left:36.0pt;'> </p><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="624"
style='width:468.0pt;margin-left:36.0pt;'><tr><td valign="top" style='padding:0cm 0cm 0cm 0cm;'><div><p class="MsoNormal"><span style='color:navy;'>… </span>Should it not be remembered that the M&H turnbuckle device does not CREATE crown ( that is done during board construction) but rather is intended to merely preserve it (in all planes, even if ever so slight) by preventing "case spread"?<br>Would those who are so critical of the efficacy of this device ( and the very importance of crown ) also fully explain to us, please, why they impart crown, at all, in their own board designs? (Yes, I belive it has been well explained as "for stiffness" -- but perhaps the "spider" assists in this, and serves another function also - such as in transferral of vibration equitably from one part of the case to another, and consequently back to the board, helping to create the M&H's nearly unique, signature, resonance.)
<br>Could not the value of the M&H device be simply demonstrated by temporarily removing one, and making a scientific before/after analyzation of tone? ( In same RH, temperature, barometric pressure and etc..) <br><br>Most Respectfully,<br>Thumpe</p></div></td></tr></table><div id="_origMsg_"><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";'> </span></p><div><div class="MsoNormal" align="center" style='margin-left:36.0pt;text-align:center;'><span style='font-size:10.0pt;font-family:"sans-serif";'><hr size="1" width="100%" align="center"></span></div><p class="MsoNormal" style='margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt;'><b><span style='font-size:10.0pt;font-family:"sans-serif";'>From: </span></b><span style='font-size:10.0pt;font-family:"sans-serif";'>Delwin D Fandrich <<a rel="nofollow" ymailto="mailto:del@fandrichpiano.com" target="_blank"
href="javascript:return">del@fandrichpiano.com</a>>; <br><b>To: </b><<a rel="nofollow" ymailto="mailto:caut@ptg.org" target="_blank" href="javascript:return">caut@ptg.org</a>>; <br><b>Subject: </b>Re: [CAUT] Fwd: Mason & Hamlin soundboard model with tuning fork <br><b>Sent: </b>Fri, May 11, 2012 8:01:48 PM </span></p><table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="624" style='width:468.0pt;margin-left:36.0pt;'><tr><td valign="top" style='padding:0cm 0cm 0cm 0cm;'><div><p class="MsoNormal" style=''><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'>Assuming we’re thinking of the same device, it demonstrates nothing besides the fact that you can make a piece of wood that is forcibly bent by applying pressure to its ends—i.e., longitudinally to grain—resonant. This is not how piano soundboards are crowned nor is it how they work.</span></p><p class="MsoNormal" style=''><span
style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal" style=''><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'>ddf</span></p><p class="MsoNormal" style=''><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal" style=''><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Delwin D Fandrich</span></p><p class="MsoNormal" style=''><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Piano Design & Fabrication</span></p><p class="MsoNormal" style=''><span style='font-size:10.0pt;font-family:"sans-serif";color:#632423;'>6939 Foothill Court SW, </span><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Olympia, Washington 98512 USA</span></p><p class="MsoNormal" style=''><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'>Phone 360.515.0119
— Cell 360.388.6525</span></p><p class="MsoNormal" style=''><span style='font-size:10.0pt;font-family:"Comic Sans MS";color:#632423;'><a rel="nofollow">del@fandrichpiano.com </a>— <a rel="nofollow">ddfandrich@gmail.com</a></span></p><p class="MsoNormal" style=''><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:navy;'> </span></p><p class="MsoNormal" style='margin-left:36.0pt;'><b><span style='font-size:10.0pt;font-family:"sans-serif";'>From:</span></b><span style='font-size:10.0pt;font-family:"sans-serif";'> <a rel="nofollow" ymailto="mailto:caut-bounces@ptg.org" target="_blank" href="javascript:return">caut-bounces@ptg.org</a> <a rel="nofollow" ymailto="mailto:[mailto:caut-bounces@ptg.org]" target="_blank" href="javascript:return">[mailto:caut-bounces@ptg.org]</a> <b>On Behalf Of </b>Alan Eder<br><b>Sent:</b> Friday, May 11, 2012 11:48 AM<br><b>To:</b> <a rel="nofollow" ymailto="mailto:caut@ptg.org" target="_blank"
href="javascript:return">caut@ptg.org</a><br><b>Subject:</b> Re: [CAUT] Fwd: Mason & Hamlin soundboard model with tuning fork</span></p><p class="MsoNormal" style='margin-left:36.0pt;'> </p><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>By no stretch of the imagination it is my personal call what to include in the final cut of the film, but I am very interested in your critique of the phenomenon this model is designed to </span><span class="apple-style-span"><span style='font-family:"sans-serif";color:black;'>demonstrate, and would like to see your perspective integrated into the discussion. Please elaborate on your comment.</span></span><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div><div><p
class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Thanks,</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div><div><p class="MsoNormal" style='margin-bottom:12.0pt;margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Alan Eder</span></p><div><p class="MsoNormal" style='margin-bottom:12.0pt;margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>-----Original Message-----<br>From: Delwin D Fandrich <<a rel="nofollow"><span style='color:windowtext;'>del@fandrichpiano.com</span></a>><br>To: caut <<a rel="nofollow"><span style='color:windowtext;'>caut@ptg.org</span></a>><br>Sent: Fri, May 11, 2012 11:01 am<br>Subject: Re: [CAUT] Fwd: Mason & Hamlin soundboard model with tuning fork</span></p><div
id="AOLMsgPart_1_08889b28-6633-426c-828d-2e13ca52b090"><div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Why would you want to include such misinformation in what might otherwise be a technically accurate presentation?</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>ddf</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Delwin D Fandrich</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span
style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Piano Design & Fabrication</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>6939 Foothill Court SW, Olympia, Washington 98512 USA</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Phone 360.515.0119 — Cell 360.388.6525</span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'><a rel="nofollow">del@fandrichpiano.com </a>— <a rel="nofollow">ddfandrich@gmail.com</a></span></p></div><div><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><b><span
style='font-size:10.0pt;font-family:"sans-serif";color:black;'>From:</span></b><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> <a rel="nofollow">caut-bounces@ptg.org</a> [<a rel="nofollow">mailto:caut-bounces@ptg.org</a>] <b>On Behalf Of </b>Alan Eder<br><b>Sent:</b> Friday, May 11, 2012 9:38 AM<br><b>To:</b> <a rel="nofollow">caut@ptg.org</a><br><b>Subject:</b> [CAUT] Fwd: Mason & Hamlin soundboard model with tuning fork</span></p></div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div><div><div id="AOLMsgPart_1_1e4f1982-d02d-41d9-84fb-19e74250044d"><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>List, </span></p></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal"
style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>As you may or may not know, there is a film being made about the rebuilding of a Steinway grand by Richard Davenport and cohorts called "Raising a Grand." Most of the shooting is already in the can, but we are still getting some pick-up shots. In order to demonstrate the need for crown in a piano soundboard, we would like to use one of those Mason and Hamlin demonstration models in which the mini-soundboard can readily have crown added or taken away, to demonstrate the pronounced difference presence or absence of crown can make. Anyone who can provide us with such a beast will be properly compensated with our undying thanks and a Reward In
Heaven. </span></p></div></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Thanks,</span></p></div></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";color:black;'>Alan Eder</span></p></div><div><div style='margin-left:36.0pt;'><p class="MsoNormal" style='margin-left:36.0pt;'><span
style='font-size:10.0pt;font-family:"sans-serif";color:black;'> </span></p></div></div></div></div></div></div></div></div></div></div></td></tr></table><p class="MsoNormal" style='margin-left:36.0pt;'><span style='font-size:10.0pt;font-family:"sans-serif";'> </span></p></div></div></div></div></td>
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