I know only Graveworm that using violin in their music. Can you give me any other band ? (Preferred black metal though violin in extreme metal music approved).

A Forest Of Stars. One of the finest black metal entities to use violin in their music.

Nice music , not bad violin, more extreme than Graveworm, less melodious.

My favorite violin using BM band.

I was going to post some Coldworld but you beat me to it. Great band. Highly recommended.

Vhernen the Faroese Black/Doom artist uses electric violin in his music.

That is all.

Although closer to death metal than black metal (but being really close to both tbh, just like most of the black/death metal scene of sweden at the time, bands like Sacramentum, Dawn, Dissection etc.) I'd nominate early At the Gates here, they used violins on their first studio album in some places, and it probably has to be the most weird violin usage I have ever heard (but then again, that entire album is weird as fuck, some real scary shit there)

http://www.youtube.com/watch?v=qUqnoKpypfQ
Here from about 3:25 onwards they play a riff on violin they were previously playing on guitar.

Check out this if you want some great use of violins

Månegarm, if you consider viking black metal "black enough"

Not sure if that's violin but this band's debut cover is a photo of the French Canadian violinist and composer Joseph Allard. Some fine music these guys create, but quite short violin parts.



and another one :