Ive been lookin for this for quite a long time -_-'

It'd be nice to find it>.<

Preferably for piano

Cello would be AWESOME@_@

And voice- SA, SSA or whatever

use the search button next time ^^...

or go here:

http://www.gamingforce.org

go to Concert Hall then Musician's Library then look for Captnflav's Transcriptions ^^

or here:
http://forums.ichigos.com/showthread.php?t=12433&highlight=Darkness

note: this piano version only