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1.8 | Bring Your Daughter to Work Day | 2:40 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test By, Volume 2 | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Valve | |
2.8 | Bring Your Daughter to Work Day | 2:40 | Aperture Science Psychoacoustic Laboratories | Portal 2 Soundtrack: Songs to Test By | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Valve | |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2 Soundtrack: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings, Valve | IPC134 |
1.30 | Bring Your Daughter to Work Day | 2:40 | Aperture Science Psychoacoustic Laboratories | Portal 2 Soundtrack: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings | |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings | |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings | |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings | |
2.8 | Bring Your Daughter to Work Day | 2:40 | Aperture Science Psychoacoustic Laboratories | Portal 2 Soundtrack: Songs to Test By | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Valve | |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test by (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings | |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings | [none] |
2.8 | Bring Your Daughter to Work Day | 2:42 | Aperture Science Psychoacoustic Laboratories | Portal 2: Songs to Test By (Collectors Edition) | Aperture Science Psychoacoustic Laboratories | Album + Soundtrack | | Ipecac Recordings, Liberator Music | |