And why not? You're great to be trying different woods! I don't know if it's true or not, but when I took a Louisiana Folklore Class, the instructor taught from a book that said my dad was the first to build accordions out of different kinds of wood, using only a clear varnish. I think it was a book by Barry Ancelet. I never asked my dad about it, and just took it for the truth, but it doesn't really matter. I believe it. Maybe you won't. Anyway, the point is, I think that experimentation leads to improvement, so why not? Go for it! And I'd love to see a picture of it when you're done!

As a luthier, I can only think of the purflings on a violin that have a mitered joint.

Craig,

Good example.

But other fretted instruments have mitters in their construction: some guitar do, and although I haven't done any research on other fretted musical instruments, i can bet that mittered joinery is indeed used.
I also know that mitter saws and a mitter blocks are part of every luthier tool box, so that speak volume to me.
A professional Luthier is well versed in wood working and metal working techniques, and that's why in Europe some build accordions as well, diatonics and others.
So when I say Luthier I meant it with the upmost respect, not as makers of fretted instuments, but musical instruments period.
A misnomner on my part,ok.
Salut a toi.

Claude.

Amatuer. Latin Amator. Devoted pursuer of an object.
I am an amatuer luthier in that the $$ pays for pleasures and the work is done for enjoyment. This does not detract from skill or talent. I have no miter saws, only dovetail. No guitar I have made or repaired uses mitered joints. Lutherie only involves stringed instruments. Those that are plucked and those that are bowed. Now a Harp may have mitered joints. Some banjo rims start with 22 1/2 deg. mitered joints and then turned round.
No more from me on joints!

Craig