Maybe you wanna say Celtic or Viking Metal band... because Black Metal band don't really USE violin, at least the have a GUEST violin or viola. Anyway, aftermentioned Månegarm (Viking Metal) over all. There is also Dark Metal which envolves so many "gothic" instrument such as organ, keyboards, piano, violin, archs and so on. Graveworm, Eisregen, Elvira Madigan, just for example. As I said some Black Metal bands had guest violins or arch too. An exemple is Carpathian Forest's "It's Darker Than You Think" from the album "Defending The Throne Of Evil".