Music of the Spheres Lyrics
| Song | Music of the Spheres |
| Artist | Aperture Science Psychoacoustics Laboratory |
| Album | Portal 2 (Songs to Test By) (Volume 2) |
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| Song | Music of the Spheres |
| Artist | Aperture Science Psychoacoustics Laboratory |
| Album | Portal 2 (Songs to Test By) (Volume 2) |