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Old 12-14-2009, 05:17 PM
L20A L20A is offline
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Join Date: Sep 2007
Location: Roy Utah
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Several luthiers have told me that arched top instruments open up while flat top guitars don't.
Flat top guitars change tone due to hardening of the finish and drying of the woods.
Arched tops actually go through a molecular change that causes the opening up to happen.
I can't prove this, but I see no reason to doubt them.
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