Captain, My Captain

Captain, My Captain is a track included in the Halo: Combat Evolved Anniversary: Original Soundtrack. It is a new piece of music based on the music that originally played during the cutscene on the level Keyes, when John-117 retrieves Keyes' neural implants. While the original music was just part of Dust and Echoes in reverse, this is a completely separate track.

Trivia
The name of this track is most likely a reference to the poem by Walt Whitman, "O Captain! My Captain!", which lamented the death of the sixteenth American president, Abraham Lincoln.