> So it's a coincidence that Williams' only Asian themed scores happen to
> revolve around cello solos?
Oh come on, I think people find great soloists for film work not because of their ethnicity. Ma and Perlman are simply two of the best instrumentalists out there. Ma's done a great deal of work in films- ranging from Tan Dun scores and Williams to (gasp!) Philip Glass. And Perlman's done Hero (for Tan Dun) too. Hard to find a connection there.
So I think your conclusions are a bit superficial.