I do like a decent instrumental, metal wise.
Despite Bruce Dickinson being a wonderful vocalist, this is a fave piece of classic Iron Maiden.
Faith No More don't get enough credit imo, I know they're perhaps on the tail end of classic rock, but Epic was a masterpiece, and to me, they're one of the few bands who've truly evolved with every new album, yet kept the quality up.
Also, if I'm honest, I'd try to shoehorn a Faith No More link into a dubstep,classical, or country discussion if I could, just because there's still people who just don't understand how great they were.
So here's my favourite instrumental from them:
Because I can I'm going to drop some Metallica in too, had to choose between Orion and this one, both are so good in their slow yet overpowering build up.