What is the song in Tokyo Ghoul with the discordant piano? If anyone knows, I would be so grateful. I've been looking for this one song in Tokyo Ghoul Root A that I just cannot find. It has very discordant piano music in the very beginning.

It plays in Root A episode 5, when Kaneki is Centipede and is fighting Shirohara and Amon.
It's called Die Verwandlung. Which is the 3th soundtrack on the Tokyo Ghoul EXTRA CD Vol.2 1st Mini Soundtrack