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Bungie Songs
"Never Forget" from Halo 3.
"Overture" from Halo Reach.
"Overture" from Halo 3 ODST.
"Wake Me When You Need Me" from Halo 3.
"Ghosts of Reach" from Halo 2.
Non-Bungie Songs:
"Bravery, Brotherhood" from Halo: Combat Evolved Aniiversary.
"An End of Dying" from Halo: Combat Evolved Aniiversary.
"Yawning Chasm" from Halo: Combat Evolved Aniiversary.
"Honest Negotiation Suite" from Halo: Combat Evolved Aniiversary.
Most of there where in Halo CE's OST, but they where remastered and didn't sound as cheap as the originals.