Vídeo musical
You Are Not Part of the Control Group
![Escucha Portal 2: Songs to Test By (Original Game Soundtrack) [Collectors Edition] de Aperture Science Psychoacoustic Laboratories](https://is1-ssl.mzstatic.com/image/thumb/Music122/v4/b8/98/4d/b8984dda-e37e-05a7-3d23-8512828a581c/5051083189118_cover.jpg/400x400bb.webp "Escucha Portal 2: Songs to Test By (Original Game Soundtrack) [Collectors Edition] de Aperture Science Psychoacoustic Laboratories")
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Aperture Science Psychoacoustic Laboratories
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