These aren't similar but you may like:
Also from Mai Hime called Ensei
Not sure if you'd like this one but it's short and quick, also from Mai Hime. Mai-Hime has a lot of good (at least IMO) instrumentals so maybe you might wanna look up the OST.
This is from Fate/Stay Night called Unmei no Yoru translated as Night of Fate. I love the violin part, the female vocal in the background is what I don't like :P.
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