DESCRIPTION:
To view the sheet music, click here: http://www.youtube.com/watch?v=rmtn25fygu0
The audio is from Sibelius 6, as the samples are better than default MIDI sounds.
Captured using Fraps at 1080p. Edited using Sony Vegas. Rendered at 720p.
On a semi-unrelated note the MP4 format annoys me because it doesn't seem to render pitch consistently, you may or may not notice that the audio goes in and out of tune.

Ignore these tags:
Halo series franchise xbox 360 original slim s pc personal computer windows 95 97 98 2000 me millennium xp vista 1 2 3 4 5 6 7 8 9 0 combat evolved ce custom edition 2 two 3 three odst reach anniversary 4 four master chief cortana noble six the rookie wars bungie studios Microsoft 343 industries ensemble martin o'donnell odonnell Michael salvatori original soundtrack ost volume legends lost song opening suite truth and reconciliation suite brothers in arms enough dead heroes perilous journey a walk in the woods ambient wonder the gun pointed at the head of the universe trace amounts under cover of night what once was lost lament for private pvt Jenkins devils monsters covenant dance alien corridors rock anthem for saving the world the maw drumrun on a pale jorse perchance to dream library suite the long run suite autumn shadows dust and echoes theme mjonlir mix steve vai blow me away breaking Benjamin peril ghosts of reach follow 1st first movement of the odyssey incubus heretic hero flawed legacy impend never surrender ancient machine 2nd second in amber clad the last Spartan orbit of glass 3rd third heavy price paid earth city high charity 4th fourth remembrance connected prologue cairo Mombasa unyielding mausoleum unforgotten delta sacred icon reclaimer finale epilogue luck released infiltrate honourable intentions last of the brave brutes out of shadow to kill a demon this is our land this is the hour dread intrusion follow our brothers farthest outpost behold a pale horse edge closer black tower one final effort gravemind no more dead heroes keep what you steal reborn greatest journey tribute role call wake me when you need me legend choose wisely movement never forget finish the fight lvurfr3nz overture the rookie more than his share deference for darkness menagerie asphalt and ablution traffic jam neon night the office of naval intelligence bits and pieces skyline no stone unturned one way ride the light at the end data hive special delivery desperate measures machines and might blade and burden steel and light true arbiter shattered legacy into light quartet here in peril risk and reward exit window winter contingency oni sword base nightfall tip of the spear long night of solace exodus new Alexandria the package from the vault ashes fortress we're were not going anywhere at any cost both ways remix walking away ghosts and glass we remember the pillar of autumn silent cartographer assault on the control room 343 guilty spark the library two betrayals keyes the maw the armory cairo station outskirts metropolis arbiter oracle regret quarantine zone uprising great journey arrival sierra 117 crow's crows nest tsavo highway the storm floodgate ark covenant prepare to drop Mombasa streets tayari plaza uplift reserve kizingo boulevard alpha site nmpd hq kikowani station coastal highway noble actual lone wolf