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.

Volume 1
1. Science is Fun - 2:33 - File:01-Science is Fun.mp3

2. Concentration Enhancing Menu Initialiser - 2:16 - File:02-Concentration Enhancing Menu Initialiser.mp3

3. 999999 - 3:11 - File:03-999999.mp3

4. The Courtesy Call - 3:37 - File:04-The Courtesy Call.mp3

5. Technical Difficulties - 3:21 - File:05-Technical Difficulties.mp3

6. Overgrowth - 2:50 - File:06-Overgrowth.mp3

7. Ghost of Rattman - 4:06 - File:07-Ghost of Rattman.mp3

8. Haunted Panels - 1:36 - File:08-Haunted Panels.mp3

9. The Future Starts With You - 3:21 - File:09-The Future Starts With You.mp3

10. There She Is - 4:20 - File:10-There She Is.mp3

11. You Know Her? - 3:10 - File:11-You Know Her.mp3

12. The Friendly Faith Plate - 2:59 - File:12-The Friendly Faith Plate.mp3

13. 15 Acres of Broken Glass - 4:59 - File:13-15 Acres of Broken Glass.mp3

14. Love as a Construct - 4:57 - File:14-Love as a Construct.mp3

15. I Saw a Deer Today - 3:13 - File:15-I Saw a Deer Today.mp3

16. Hard Sunshine - 2:48 - File:16-Hard Sunshine.mp3

17. I Am Different - 4:28 - File:17-I Am Different.mp3

18. Adrenal Vapor - 2:36 - File:18-Adrenal Vapor.mp3

19. Turret Wife Serenade - 1:38 - File:19-Turret Wife Serenade.mp3

20. I Made It All Up - 3:56 - File:20-I Made It All Up.mp3

21. Comedy Equals Tragedy Plus Time - 3:29 - File:21-Comedy Equals Tragedy Plus Time.mp3

22. Triple Laser Phase - 4:15 - File:22-Triple Laser Phase.mp3

Others
1. Exile Vilify - 4:46 by The National

2. Want You Gone - 2:22

Ringtones
1. Turret Wife Serenade - 0:19

http://media.steampowered.com/apps/portal2/soundtrack/01/mp3/19-Turret_Wife_Serenade.mp3

2. Science Is Fun - 0:18

http://media.steampowered.com/apps/portal2/soundtrack/01/mp3/01_Science_is_Fun.mp3

3. The Friendly Faith Plate - 0:16

http://media.steampowered.com/apps/portal2/soundtrack/01/mp3/12-The_Friendly_Faith_Plate.mp3

4. The Courtesy Call - 0:16

http://media.steampowered.com/apps/portal2/soundtrack/01/mp3/04-The_Courtesy_Call.mp3

5. I Saw a Deer Today - 0:29

http://media.steampowered.com/apps/portal2/soundtrack/01/mp3/15-I_Saw_a_Deer_Today.mp3

6. Comedy Equals Tragedy Plus Time - 0:29

http://media.steampowered.com/apps/portal2/soundtrack/01/mp3/21-Comedy_Equals_Tragedy_Plus_Time.mp3