Didactic Principal

Didactic Principal is the thirty-ninth track (Disc 2 Track 22) in Halo: Combat Evolved Anniversary: Original Soundtrack.

Overview
The track features the Halo Theme Gregorian chant variation followed by the Halo: Combat Evolved Anniversary rendition of the Halo Theme, both of which came from the earlier track Random Slipspace Trajectory, while accompanied by the tribal percussion from Choreographite.

Appearances
The track plays in place of the its unreleased classic counterpart, which is a mix of Opening Suite and Covenant Dance, in Halo: Combat Evolved Anniversary, during the opening cinematic of the level Keyes, when the Covenant are seen fighting the Flood underneath the Truth and Reconciliation.