<font color='black' size='2' face='Comic Sans MS, sans-serif'><font size="2"><font face="Comic Sans MS, sans-serif">David<br>   Good descriptive of Bloom.<br>   </font></font>And <font color="black" face="Comic Sans MS, sans-serif" size="2">no matter it can't be quantified, we all pluck strings and listen to this phenomena. IMO it is the bloom that  gives a piano its distinctive voice.  I looked a t 6 ft Sojin yesterday 15 years. Fantastic singing voice with excellent bloom. I've heard few any better.<br>  The weak spot in these pianos is always the hammers and bass strigns. Had a nice tight grain Sitka board. Heavy sand cast plate. No compression ridges.  I don't know how they make there boards but ...its working. Great impedance balance! Who woulda thought?<br> <div> <br> </div> <div> <br> </div> <div style="clear: both;"><b><font color="indigo" size="1"><font face="Comic Sans MS, sans-serif"><font size="2">Dale S. Erwin<br> </font></font><font face="Comic Sans MS, sans-serif"><font size="2"><font size="1">www.Erwinspiano.com</font></font><br> <font size="1">Custom restoration<br> Ronsen Piano hammers<br> Join the Weickert felt Revolution<br> 209-577-8397</font></font><br> 209-985-0990</font><font size="1"><br> </font></b><br> <br> </div> <div> <br> </div> <div> <br> </div> <div style="font-family: arial,helvetica; font-size: 10pt; color: black;">-----Original Message-----<br> From: David Love <davidlovepianos@comcast.net><br> To: pianotech@ptg.org<br> Sent: Thu, Mar 17, 2011 7:48 am<br> Subject: Re: [pianotech] What is bloom,<br> <br> <div id="AOLMsgPart_2_915ad571-6158-4f27-b9c9-b020aee7e5d3"> <style>#AOLMsgPart_2_915ad571-6158-4f27-b9c9-b020aee7e5d3 td{color: black;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} @font-face {font-family:"Comic Sans MS"; panose-1:3 15 7 2 3 3 2 2 2 4;} #AOLMsgPart_2_915ad571-6158-4f27-b9c9-b020aee7e5d3 p.MsoNormal,#AOLMsgPart_2_915ad571-6158-4f27-b9c9-b020aee7e5d3 li.MsoNormal,#AOLMsgPart_2_915ad571-6158-4f27-b9c9-b020aee7e5d3 div.MsoNormal {margin:0in; 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font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Oh and let me add (just to get started) a system that has just the right impedance characteristics to provide a balance between power and sustain.   </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Bloom, then, is that characteristic that some soundboard systems have in which the smallest amount of energy input gets the system moving while at the same time the system won’t give up its energy too quickly.   The why (as JD asked) has to do with the physical characteristics of the soundboard (and scale) that allow that make that happen.    Not an adequate or complete description, I realize, but until one defines what bloom is it will be difficult to describe what causes it, or better, allows it.  </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">Feel free to correct, modify or add.  </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></div> <div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">David Love</span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"><a href="http://www.davidlovepianos.com" target="_blank">www.davidlovepianos.com</a></span></div> </div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></div> <div> <div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;"> <div class="MsoNormal"><b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";"> <a href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</a> [<a href="mailto:pianotech-bounces@ptg.org?">mailto:pianotech-bounces@ptg.org</a>] <b>On Behalf Of </b>David Love<br> <b>Sent:</b> Thursday, March 17, 2011 7:31 AM<br> <b>To:</b> <a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a><br> <b>Subject:</b> Re: [pianotech] What is bloom,</span></div> </div> </div> <div class="MsoNormal"> </div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">OK then let me start this by offering one criteria that might impact this particular quality.  Optimizing the stored potential energy in the soundboard/string system.  </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></div> <div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);">David Love</span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"><a href="http://www.davidlovepianos.com" target="_blank">www.davidlovepianos.com</a></span></div> </div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: rgb(31, 73, 125);"> </span></div> <div> <div style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) -moz-use-text-color -moz-use-text-color; padding: 3pt 0in 0in;"> <div class="MsoNormal"><b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";">From:</span></b><span style="font-size: 10pt; font-family: "Tahoma","sans-serif";"> <a href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</a> [<a href="mailto:pianotech-bounces@ptg.org?">mailto:pianotech-bounces@ptg.org</a>] <b>On Behalf Of </b>Delwin D Fandrich<br> <b>Sent:</b> Wednesday, March 16, 2011 3:11 PM<br> <b>To:</b> <a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a><br> <b>Subject:</b> Re: [pianotech] What is bloom, was RE: Tuning the duplex sections</span></div> </div> </div> <div class="MsoNormal"> </div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Comic Sans MS"; color: navy;">Not having ever been able to measure this…I don’t.</span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Comic Sans MS"; color: navy;"> </span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Comic Sans MS"; color: navy;">ddf</span></div> <div class="MsoNormal"><span style="font-size: 11pt; font-family: "Comic Sans MS"; color: navy;"> </span></div> <div> <div class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS"; color: rgb(99, 36, 35);">Delwin D Fandrich</span><span style="font-size: 10pt; font-family: "Calibri","sans-serif"; color: rgb(99, 36, 35);"></span></div> <div class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS"; color: rgb(99, 36, 35);">Piano Design & Fabrication</span><span style="font-size: 10pt; font-family: "Calibri","sans-serif"; color: rgb(99, 36, 35);"></span></div> <div class="MsoNormal"><span style="font-size: 10pt; font-family: "Calibri","sans-serif"; color: rgb(99, 36, 35);">6939 Foothill Court SW, </span><span style="font-size: 10pt; font-family: "Comic Sans MS"; color: rgb(99, 36, 35);">Olympia, Washington 98512 USA</span></div> <div class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS"; color: rgb(99, 36, 35);">Phone  360.736.7563 — Cell  360.388.6525</span><span style="font-size: 10pt; font-family: "Calibri","sans-serif"; color: rgb(99, 36, 35);"></span></div> <div class="MsoNormal"><span style="font-size: 10pt; font-family: "Comic Sans MS"; color: rgb(99, 36, 35);"><a href="mailto:del@fandrichpiano.com%20">del@fandrichpiano.com </a>— <a href="mailto:ddfandrich@gmail.com">ddfandrich@gmail.com</a></span><span style="font-size: 11pt; font-family: "Calibri","sans-serif"; color: navy;"></span></div> </div> </div> </div>  </div> </font></font>