Try some of the M*A recordings. They are a bit eclectic to say the least. Todd Garfinkel travels all over the world and records groups that play instruments that you may not even be familiar with. One thing is consistent--his recordings are outstanding. He knows his equipment, limitations, and most of all Mic placement. Some of the recordings I don't know the instruments, but I feel like I do after I listen to his recordings of them. Calamus is a good one to start with, but the best is going to a show (like HE 2003) and listening because they vary quite a bit.