Comedy Equals Tragedy Plus Time Lyrics
| Song | Comedy Equals Tragedy Plus Time |
| Artist | Aperture Science Psychoacoustics Laboratory |
| Album | Portal 2 (Songs to Test By) (Volume 1) |
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| Song | Comedy Equals Tragedy Plus Time |
| Artist | Aperture Science Psychoacoustics Laboratory |
| Album | Portal 2 (Songs to Test By) (Volume 1) |