Real World

Not a Number

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Not a Number


Halo 2: Anniversary Original Soundtrack


Martin O'Donnell and Michael Salvatori




Kilindini Harbour


Not a Number is the third track included in the first disc of the Halo 2: Anniversary Original Soundtrack. It is the remastered orchestral version of Remembrance from the Halo 2: Original Soundtrack, while Unsullied Memory is the remastered vocal version.


Halo: The Master Chief Collection[edit]

Not a Number is one of the tracks featured in the menus of Halo: The Master Chief Collection. The menu music opens with the monk chant from the Combat Evolved Anniversary OST track Installation 04, followed by Not a Number and ending with the Halo 2: Anniversary track Unwearied Heart.