The song is The Devil's Trill, from Yami no Matsuei. It's violin (the original has a full orchestra).

Would very much appreciate it! Thanks in advance!

Yami no matsuei is Darker Descendants, right?

You're using an illegal link. remove it at once, or else.

You could just suggest to go to gendou, but don't post a link.

Yeah. Descendants of Darkness, Darker Descendants, same diff.

Sorry 'bout that. I pulled it.

now, good. If I have time, I'll do it. If you have some other requests, please post at the thread I opened, To save some space.

I believe Gedtag transcribed it for first and second violin already...^_^;