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Wood Density Key to Violin Sound

Posted July 02, 2008 8:05 AM

From BBC News | Science/Nature | UK Edition:

The unique sounds of a Stradivarius violin may come down to the density of the wood it is made from. Scientists say the patterns of the grain are markedly different from modern instruments. It is believed that the seasonal growth of trees in the early seventeenth century was affected by a mini-Ice Age. Stradivarius had the benefit of wood that was produced in conditions that have not been repeated since then, the journal Plos One repThe work by a team from the Netherlands represents the latest finding in ongoing efforts to understand the sound quality of these violins. The musical instruments created in Cremona, Italy, by Antonio Stradivari in the early 1700s have acquired a matchless reputation for tone and clarity down the centuries. Around six hundred of the violins, violas, guitars and cellos made by the Italian master survive; on the rare occasion they come up for auction they sell for millions. There have been several suggestions as to why these instruments sound so good and why the modern world has thoroughly failed to replicate their quality. It was once argued that Stradivari and others used wood from ancient churches or that they added a mysterious ingredient to the wood or used techniques that have since been lost. But modern technology first developed to help people suffering from emphysema may have unlocked the riddle of these fiddles. orts.

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#1

Re: Wood Density Key to Violin Sound

07/03/2008 9:44 AM

Re: "Since differentials in wood density impact factors such as "vibrational efficacy" and the production of sound..."

Any acoustician would 'nod', that since every material exhibits its own characteristic velocity (of acoustic wave transmission)... as well as its own characteristic acoustic impedance... and, given that those impedances are a function of the Velocity thru the material and (times) its Density... and, that those velocities are related to the elasticity of the material... well, no doubt that every different species of wood will impart its own characteristic sound to the instrument that it is made into.

Just imagine how many other incredibly wondrous tidbits He planned-into this great cosmos for us to discover!

Best Regards, and "Happy 4th!" to all ~

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#3
In reply to #1

Re: Wood Density Key to Violin Sound

07/03/2008 10:49 AM

Just imagine how many other incredibly wondrous tidbits Heplanned-into this great cosmos for us to discover!

Yep, He did a great job.

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#2

Re: Wood Density Key to Violin Sound

07/03/2008 10:24 AM

Wood from the elm (Ulmus ulmus) is common and plentiful, but not much used for musical instruments. Why? Because of its' improper density, among other reasons. So why would this not be nearly a given? Of course, not an OBVIOUS given...

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#4
In reply to #2

Re: Wood Density Key to Violin Sound

07/03/2008 12:22 PM

(?)"common and plentiful"...?

http://www.elmpost.org/ would lead us to fear otherwise... ... Tho a new type of elm (the "Lacebark Elm") with it's resistance to Dutch Elm, etc., looks like a promising answer, at least insofar as being a provider of this strong wood.

hmmm ... "strong" wood ... maybe it would suffice for piano legs...

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#5
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Re: Wood Density Key to Violin Sound

07/03/2008 12:32 PM

I should have said "was" () in the days of Strad and counterparts. Yes, piano legs might be a choice, but other woods like maple have a nicer grain pattern. I have friends who are luthiers (guitar and violin makers, derived from "lute") who go to great pains to select the woods they use. A good guitar can have 6 different kinds of wood in it, and some violins may have up to 12 kinds (including decorative touches). The sci-art fascinates me!

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#6

Re: Wood Density Key to Violin Sound

07/05/2008 4:38 AM

There was an article, some 12 years ago, which stated the Stradivarius instruments used secret adhesives and varnish recipes, which have since been lost.

The denser wood theory may well have a significant bearing on the Stradivarius instruments, as this above article proposes.

But when all said and done, 300 years of the instruments to mature, may, like a very fine wine, be the main reason for the interesting tonal quality.

You should note that I have hedged my bets.

Kind Regards....

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#7
In reply to #6

Re: Wood Density Key to Violin Sound

07/07/2008 7:36 AM

Sparky, that's entirely possible, but from what I've read, these instruments were considered marvelous even when new. I've also read that micro-samples of the glue and varnish have been tested and found ordinary...

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#8

Re: Wood Density Key to Violin Sound

06/03/2010 1:45 PM

very informative... thanks!

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