

" If I Were A Core, a single turret's lament about what it would've done in Wheatley's place in a parody of " If I Were Boy".note This is made even more awesome by the fact that all of the voices were done by the same guy. Some of the voices in there are so good you'd swear they were the original VAs. " This Is Aperture ", a Portal-themed take on " This Is Halloween"." Wheatley's Song ", by Miracle of Sound is a rocker explaining Wheatley in song while also summing up everything he's done.In any case, the song is beautiful and shows that GLaDOS really does have a soft spot for Chell. Here's the original version uploaded by Lowrie, here is a version in GLaDOS's voice, and here is a music video version (with some spoilers). "GLaDOS's Song", a Cut Song written by Ellen McLain herself with her husband John Patrick Lowrie playing guitar.Despite the digital effects and the nigh-incomprehensable lyrics (they're in Latin, for the curious), the sheer emotion in GLaDOS' singing is enough to make you want to shed a tear. This song only plays on the title screen while you're in the old Aperture Science testing spheres, but it's one of the most haunting, etherial melodies in the entire game. " Exile Vilify ", by The National is a soothing number which is also kind of sad as it portrays the dilapidated state of Aperture.And during the game you can find some of these turrets singing "Turret Wife Serenade".There's something about the music box version of the turret opera that just drives you to tears.Some humans did it in a capella, and it's pretty damn good!.Before the end song, the player is greeted with a choir of turrets.Now available in acapella, courtesy of Peter Hollens and Mystery Guitar Man.Like "Still Alive", it sounds better in a minor key.

The ending song, "Want You Gone" (spoilers, of course), explains GLaDOS' feelings in song.It sounds so sad and lonely, it's impossible not to feel bad. It's a remix of I Made It All Up, but it has elements of Cara Mia Addio and Wheatley's leitmotif mixed in. If that didn't make you cry, listen to Space Phase, the menu theme that plays after beating the game. Spaaaaace : short, incredibly sad for those who finish, and feeling just so empty.and the second half, a slower reprise of "Wheatley Science", pumps you up in preparation for one hell of a Final Boss battle that places the weight of all of Aperture on your shoulders. Omg, What Has He Done? The first half of the song leaves you feeling terrified at how wrecked Aperture has become.Your Precious Moon, the music that plays when Chell fires the Moon-portal.even though something good happens instead. Even without knowing the context of the song, you can just feel that something bad is going to happen about half-way through. Bonus points for the ending of the track sounding more frantic and erratic than usual, mirroring Johnsons descent into insanity. It really gives the impression that something human has turned robotic.

During the '50s chambers, the music starts out with natural instruments, but starting around the '70s, synth starts replacing the instruments, and by the time you get to the '80s, there isn't anything natural left, it's all synthetic. What's even more interesting is how "Music of the Spheres" evolves as you progress through Old Aperture. Then, at 1:07, the music peaks, sounding both ominous and suspenseful. It starts out soft, encapsulating the wonder the player feels looking up at those titanic, abandoned testing spheres.

"Music of the Spheres" serves as the leitmotif of Cave Johnson's Aperture.Vitrification Order, You Are Not Part Of The Control Group and Forwarding The Cause Of Science all count on their own, but they all become even better when you listen to them all together and see how the first two build on each other to create the third, and then combine with another track ( Music Of The Spheres ) to create The Reunion, arguably one of the best pieces in the game.
