Song of Nephilim (XSTA music)

 is Track 30 on the Xenosaga THE ANIMATION Original Soundtrack. It plays in the following scenes:
 * Jr. sees a vision of the berserk URTVs in the Encephalon in Episode 8.
 * Jr.'s and Shion's Encephalon visions conclude, and Nephilim appears before the party.
 * Albedo has a vision of Jr. leaving him at the start of Episode 9.
 * chaos, Jr., and Gaignun recognise the Song of Nephilim as it plays in-universe in Episode 9.

An instrumental version of the piece plays when Albedo finds the Y-data inside MOMO in Episode 11.