Portal 2 soundtrack

Songs to Test By is the soundtrack for Portal 2. Songs to Test By was made available free from the Portal 2 official website in .mp3 format. Shorter versions of particular songs, or sound effects from the game, are available as ringtones. The soundtrack is releasing in three volumes: The first, titled Volume 1, was released on May 25, 2011; Volume 2 was released on July 1, 2011 and Volume 3 is currently unreleased.

Volume 1

Listen to soundtrack on YouTube.

1. Science is Fun - 2:33 - 01-Science is Fun.mp3 <mp3player>File:01-Science is Fun.mp3</mp3player>
2. Concentration Enhancing Menu Initialiser - 2:16 - 02-Concentration Enhancing Menu Initialiser.mp3 <mp3player>File:02-Concentration Enhancing Menu Initialiser.mp3</mp3player>
3. 999999 - 3:11 - 03-999999.mp3 <mp3player>File:03-999999.mp3</mp3player>
4. The Courtesy Call - 3:37 - 04-The Courtesy Call.mp3 <mp3player>File:04-The Courtesy Call.mp3</mp3player>
5. Technical Difficulties - 3:21 - 05-Technical Difficulties.mp3 <mp3player>File:05-Technical Difficulties.mp3</mp3player>
6. Overgrowth - 2:50 - 06-Overgrowth.mp3 <mp3player>File:06-Overgrowth.mp3</mp3player>
7. Ghost of Rattman - 4:06 - 07-Ghost of Rattman.mp3 <mp3player>File:07-Ghost of Rattman.mp3</mp3player>
8. Haunted Panels - 1:36 - 08-Haunted Panels.mp3 <mp3player>File:08-Haunted Panels.mp3</mp3player>
9. The Future Starts With You - 3:21 - 09-The Future Starts With You.mp3 <mp3player>File:09-The Future Starts With You.mp3</mp3player>
10. There She Is - 4:20 - 10-There She Is.mp3 <mp3player>File:10-There She Is.mp3</mp3player>
11. You Know Her? - 3:10 - 11-You Know Her.mp3 <mp3player>File:11-You Know Her.mp3</mp3player>
12. The Friendly Faith Plate - 2:59 - 12-The Friendly Faith Plate.mp3 <mp3player>File:12-The Friendly Faith Plate.mp3</mp3player>
13. 15 Acres of Broken Glass - 4:59 - 13-15 Acres of Broken Glass.mp3 <mp3player>File:13-15 Acres of Broken Glass.mp3</mp3player>
14. Love as a Construct - 4:57 - 14-Love as a Construct.mp3 <mp3player>File:14-Love as a Construct.mp3</mp3player>
15. I Saw a Deer Today - 3:13 - 15-I Saw a Deer Today.mp3 <mp3player>File:15-I Saw a Deer Today.mp3</mp3player>
16. Hard Sunshine - 2:48 - 16-Hard Sunshine.mp3 <mp3player>File:16-Hard Sunshine.mp3</mp3player>
17. I Am Different - 4:28 - 17-I Am Different.mp3 <mp3player>File:17-I Am Different.mp3</mp3player>
18. Adrenal Vapor - 2:36 - 18-Adrenal Vapor.mp3 <mp3player>File:18-Adrenal Vapor.mp3</mp3player>
19. Turret Wife Serenade - 1:38 - 19-Turret Wife Serenade.mp3 <mp3player>File:19-Turret Wife Serenade.mp3</mp3player>
20. I Made It All Up - 3:56 - 20-I Made It All Up.mp3 <mp3player>File:20-I Made It All Up.mp3</mp3player>
21. Comedy Equals Tragedy Plus Time - 3:29 - 21-Comedy Equals Tragedy Plus Time.mp3 <mp3player>File:21-Comedy Equals Tragedy Plus Time.mp3</mp3player>
22. Triple Laser Phase - 4:15 - 22-Triple Laser Phase.mp3 <mp3player>File:22-Triple Laser Phase.mp3</mp3player>

Volume 2

You Will Be Perfect by Aperture Science Psychoacoustics Laboratory [2:39] | Download | Play Halls Of Science 4 by Aperture Science Psychoacoustics Laboratory [4:35] | Download | Play Bots Build Bots by Aperture Science Psychoacoustics Laboratory [4:07] | Download | Play An Accent Beyond by Aperture Science Psychoacoustics Laboratory [2:58] | Download | Play Robot Ghost Story by Aperture Science Psychoacoustics Laboratory [3:07] | Download | Play Die Cut Laser Dance by Aperture Science Psychoacoustics Laboratory [2:01] | Download | Play Turret Redemption Line by Aperture Science Psychoacoustics Laboratory [3:23] | Download | Play Bring Your Daughter To Work Day by Aperture Science Psychoacoustics Laboratory [2:40] | Download | Play Almost At Fifty Percent by Aperture Science Psychoacoustics Laboratory [1:59] | Download | Play Don't Do It by Aperture Science Psychoacoustics Laboratory [5:16] | Download | Play Template:Dictionary/audio/i am not a moron by Template:Dictionary/audio/i am not a moron [[[:Template:Dictionary/audio/i am not a moron]]:Template:Dictionary/audio/i am not a moron] | [[Media:Template:Dictionary/audio/i am not a moron|Download]] | [[Media:Template:Dictionary/audio/i am not a moron|Play]] Vitrification Order by Aperture Science Psychoacoustics Laboratory [6:34] | Download | Play Music of the Spheres by Aperture Science Psychoacoustics Laboratory [3:38] | Download | Play You are Not Part Of the Control Group by Aperture Science Psychoacoustics Laboratory [3:24] | Download | Play Forwarding the Cause of Science by Aperture Science Psychoacoustics Laboratory [3:40] | Download | Play PotatOS Lament by Aperture Science Psychoacoustics Laboratory [1:59] | Download | Play The Reunion by Aperture Science Psychoacoustics Laboratory [3:45] | Download | Play Music of the Spheres 2 (Incendiary Lemons) by Aperture Science Psychoacoustics Laboratory [2:43] | Download | Play