[CAUT] Bridge root material

[Delwin D Fandrich]

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.

 

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