Hi, I was recently hoping to invest in a durable custom made viola however there are quite a few options of material out there and diferent timbre's are produced to. Since I don't have quite a good enough musical ear to tell the distinct differences between the timbre material sound made. I was hoping some people could help me by describing what they here. So I here three in mind Carbon Fiber, 3D Printed, and Aluminum. And here are there sound examples

Carbon Fiber:
https://m.youtube.com/watch?v=S2zMgXSoBa8

3D Printed:

Aluminum: https://m.youtube.com/watch?v=HurGLNzEsPY

I looking for a list of timbres theses instruments make beside the obvious that one is more resonant than the other
I.e mahogany wood produces warm dark tones