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Mahagony vs metal tone chamber

marketing.. wood is very pretty.. you can shape it and
varnish it.. you can make up a convincing story about it..

there really are not that many things inside an accordion that can
absorb frequencies or act in a physical tone control manner .. hard
stuff just reflects sound.. lots of hard stuff inside an accordion

two otherwise identical accordions, one has leather reedvalves,
one has mylar reedvalves.. now that might have possibilities

the experts here have explained about chambers and shapes even the
shape and volume/size of the reedblock chambers the reeds are waxed onto
and how the flow of sound and air can be affected, even the shape of the grill..
metal might be more likely to buzz if it is not done right, wood less likely as it
is usually thicker to achieve a similar strength for a given shape..

two otherwise identical accordions one with a thin metal grill one with a thick wooden grill
 
...
two otherwise identical accordions, one has leather reedvalves,
one has mylar reedvalves.. now that might have possibilities
...
And I doubt whether many people notice any difference there either.
What I have noticed most with valves is that tuning is more stable with plastic/mylar valves than with leather valves.
In terms of tone there is no difference I can notice. And the plastic valves are said to make more noise (when they close) but that is pretty negligible as well and over time leather valves start making more noise too. (But in almost all cases the pallets closing make more noise than the valves closing.)
For the tone chamber... A wooden chamber is often glued (all around) and an aluminium tone chamber more often has a gasket and is fixed with screws, making it easier to disassemble to perform service (like adjusting the arms and/or pallets).
 
Yep. Mahogany veneer over aluminium to make it look pretty.
I guess that epoxying some veneer over a thin alloy sheet will make it stiffer, so more sound waves bounce off the walls, but we are really splitting hairs here. I doubt you'll ever pick it up in a blind test.
I think size & shape of the tone chamber will make a bigger difference to the effect it has on the sound.
 
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