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. MP3 versions were made available for download, as well as shorter versions of particular songs available as ringtones. The soundtrack is to be released in three volumes, with the first, titled Volume 1, being released on May 25, 2011.^[1]

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

1. You Will Be Perfect - ?:?? - Portal2-01-You Will Be Perfect.mp3 <mp3player>File:Portal2-01-You Will Be Perfect.mp</mp3player>
2. Halls of Science 4 - ?:?? - Portal2-02-Halls of Science 4.mp3 <mp3player>File:Portal2-02-Halls of Science 4.mp3</mp3player>
3. Bots Build Bots - ?:?? - Portal2-03-Bots Build Bots.mp3 <mp3player>File:Portal2-03-Bots Build Bots.mp3</mp3player>
4. An Accent Beyond - ?:?? - Portal2-04-An Accent Beyond.mp3 <mp3player>File:Portal2-04-An Accent Beyond.mp3</mp3player>
5. Robot Ghost Story - ?:?? - Portal2-05-Robot Ghost Story.mp3 <mp3player>File:Portal2-05-Robot Ghost Story.mp3</mp3player>
6. Die Cut Laser Dance - ?:?? - Portal2-06-Die Cut Laser Dance.mp3 <mp3player>File:Portal2-06-Die Cut Laser Dance.mp3</mp3player>
7. Turret Redemption Line - ?:?? - Portal2-07-Turret Redemption Line.mp3 <mp3player>File:Portal2-07-Turret Redemption Line.mp3</mp3player>
8. Bring Your Daughter to Work Day - ?:?? - Portal2-08-Bring Your Daughter to Work Day.mp3 <mp3player>File:Portal2-08-Bring Your Daughter to Work Day.mp3</mp3player>
9. Almost at Fifty Percent - ?:?? - Portal2-09-Almost at Fifty Percent.mp3 <mp3player>File:Portal2-09-Almost at Fifty Percent.mp3</mp3player>
10. Don’t Do It - ?:?? - Portal2-10-Don’t Do It.mp3 <mp3player>File:Portal2-10-Don’t Do It.mp3</mp3player>
11. I AM NOT A MORON - ?:?? - Portal2-11-I AM NOT A MORON.mp3 <mp3player>File:Portal2-11-I AM NOT A MORON.mp3</mp3player>
12. Vitrification Order - ?:?? - Portal2-12-Vitrification Order.mp3 <mp3player>File:Portal2-12-Vitrification Order.mp3</mp3player>
13. Music of the Spheres - ?:?? - Portal2-13-Music of the Spheres.mp3 <mp3player>File:Portal2-13-Music of the Spheres.mp3</mp3player>
14. You Are Not Part of the Control Group - ?:?? - Portal2-14-You Are Not Part of the Control Group.mp3 <mp3player>File:Portal2-14-You Are Not Part of the Control Group.mp3</mp3player>
15. Forwarding the Cause of Science - ?:?? - Portal2-15-Forwarding the Cause of Science.mp3 <mp3player>File:Portal2-15-Forwarding the Cause of Science.mp3</mp3player>
16. PotatOS Lament - ?:?? - Portal2-16-PotatOS Lament.mp3 <mp3player>File:Portal2-16-PotatOS Lament.mp3</mp3player>
17. The Reunion - ?:?? - Portal2-17-The Reunion.mp3 <mp3player>File17-The Reunion.mp3:</mp3player>
18. Music of the Spheres 2 (Incendiary Lemons) - ?:?? - 18-Music of the Spheres 2 (Incendiary Lemons).mp3 <mp3player>Portal2-09-18-Music of the Spheres 2 (Incendiary Lemons).mp3</mp3player>