Music box version of Japanese song

Does anyone know the song on this blog?
http://shinsok.tumblr.com/
I recognize it but I can't remember the name. It's a music box version of a Japanese song sung by a man with a somewhat low voice.

Author: Motoo Fujiwara (of Bump of Chicken band)
Title: Mirrors
Game Score: Tales of the Abyss

The song you remember might be Karma (vocals) as suggested here