Q6889

I'm a chemist, not an acoustic engineer -- but why ever would you imagine:

1) that granite is a better conductor or insulator than wood (they're both pretty non-conductive, seems to me)

2) that the fabrication expense would repay in sound quality? One can make a canoe of concrete (using mesh support for tensile strength) or a balloon of lead foil -- but both of these are poor choices compared with wood (or fiberglass/resin) and rubber (or Mylar) respectively.

One thing that may affect acoustics is the wood density -- there are many tropical (and some temperate) woods denser than maple, for example.