Trace Amounts

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Trace Amounts

Album:	Halo: Original Soundtrack
Length:	1:52
Composer:	Martin O'Donnell
Previous song:	The Gun Pointed at the Head of the Universe
Next song:	Under Cover of Night

Trace Amounts is a song included in the Halo: Original Soundtrack. It plays in the Halo: Combat Evolved level The Library. This piece contains electronically generated sounds and a relatively slow tempo. The ominous tone reflects the library's dark past.

TriviaEdit

The name "trace amounts" is a reference to the effects that the Flood has on an atmosphere, according to the monitor of Installation 04, 343 Guilty Spark. When scientists refer to the contents of an atmosphere they say, for example, 21% oxygen, 78% nitrogen, and "trace amounts" of other gases.

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Soundtracks

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Halo: CE Original Soundtrack

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 Pvt. Jenkins • Devils... Monsters... • Covenant Dance • Alien Corridors • Rock Anthem for Saving the World • The Maw • Drumrun • On a Pale Horse • Perchance to Dream • Library Suite • The Long Run • Suite Autumn • Shadows • Dust and Echoes • Halo Theme • Siege of Madrigal

v • d • e Halo 2 Original Soundtrack

Volume 1	MJOLNIR Mix • Blow Me Away • Peril • Ghosts of Reach • 1st Movement of The Odyssey • Heretic, Hero • Flawed Legacy • Impend • Never Surrender • Ancient Machine • 2nd Movement of the Odyssey • In Amber Clad • The Last Spartan • Orbit of Glass • 3rd Movement of The Odyssey • Heavy Price Paid • Earth City • High Charity • 4th Movement of The Odyssey • Remembrance • Connected

Volume 2	Prologue • Cairo Suite • Mombasa Suite • Unyielding • Mausoleum Suite • Unforgotten • Delta Halo Suite • Sacred Icon Suite • Reclaimer • High Charity Suite • Epilogue

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Halo 3: Original Soundtrack

Luck • Released • Infiltrate • Honorable 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 • Three Gates • Black Tower • One Final Effort • Gravemind • No More Dead Heroes • Keep What You Steal • Halo Reborn • Greatest Journey • Tribute • Roll Call • Wake Me When You Need Me • Legend • Choose Wisely • Movement • Never Forget • Finish the Fight • LvUrFR3NZ

v • d • e Halo 3: ODST Original Soundtrack

Overture • The Rookie • More Than His Share • Deference for Darkness • The 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 • Finale • From the Ashes

v • d • e Halo Wars Original Soundtrack

Original Soundtrack	Spirit of Fire • Bad Here Day • Perspective • Money or Meteors • Flollo • Just Ad Nauseum • Unusually Quiet • Flip and Sizzle • Put the Lady Down • Six-Armed Robbing Suit • Action Figure Hands • Status Quo Show • Part of the Plan • Work Burns and Runaway Grunts • Freaked Out • Rescued Or Not • Best Guess At Best • One Problem At A Time • De Facto The Matter • Part of The Problem • Out of There Alive • Through Your Hoops • Under Your Hurdles • Insignificantia

DVD Exclusive Tracks	X-06 • Five Long Years • Nothing Ventured, Nothing Gained • Quite the Vacation Resort • We're Burning Sunshine

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Halo Legends Original Soundtrack

Ghosts of Reach • Brothers in Arms • Truth and Reconciliation • Opening Suite 1 • Opening Suite 2 • Halo • Desperate Measures • Cairo Suite 1 • Delta Halo Suite • Machines and Might • Remembrance • Blade and Burden • Steel and Light • Impend • True Arbiter • The Maw • Unforgotten • Shattered Legacy • Out of Darkness • High Charity Suite 2 • Into Light • Sacred Icon Suite 2 • Rescue Mission • The Last Spartan • High Charity Quartet • Here in Peril • Earth City • Risk and Reward • Exit Window • Finale 2

v • d • e Halo: Reach Original Soundtrack

Overture • Winter Contingency • ONI: Sword Base • Nightfall • Tip of the Spear • Long Night of Solace • Exodus • New Alexandria • The Package • The Pillar of Autumn • Epilogue • From the Vault • Ashes • Fortress • We're Not Going Anywhere • At Any Cost • Both Ways • Walking Away • Ghosts and Glass • We Remember

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Halo: Combat Evolved Anniversary Original Soundtrack

Random Slipspace Trajectory • Bravery, Brotherhood • Installation 04 • An End of Dying • Pale Rider • Yawning Chasm • A Private Service • Rock in a Hard Place • Flotsam, Jetsam • Captain, My Captain • Suite Fall • Demons and Heretics • Exfiltration • Honest Negotiation Suite • Unless You Mean to Shoot • Infiltration • Strung • Still, Moving • Lions and Tigers and... • Between Beams • Paranoid Illusion • Xenoarchaeology • Choreographite • In the Substance of it • How to Get Ahead in War • Unreliable Exploration • Dewy Decimate • First Step • Aborea Above • Bad Dream • Cloaked in Blackness • Strident • To Sleep • Marathon Sprint • Fragments • Heretic Machine • Unfortunate Discovery • Heliopause • Didactic Principle

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