Note: Unlike most other games listed under SugarWiki/AwesomeMusic, the OST for ''Portal 2'' is [[ available for free]] directly from Valve![[note]]And unlike some other developers they released the whole soundtrack. That's 65% more soundtrack per soundtrack.[[/note]]


[[folder: Cinematic ]]

* The theme from the trailer of ''Portal 2'', "Reconstructing Science", just doesn't want to come out from the listener's ears. [[ "It's been a looong time..."]]
* There's also the music from the extended co-op trailer: ''[[ "Don't disappoint me..."]]''
** [[ Later released without dialogue here.]]
** Now that [[ volume 2 of the OST]] is out, you can get the track (now called "You Will Be Perfect") for free, or even [[ as a ringtone!]]
* [[ Robots FTW]]... [[DepartmentOfRedundancyDepartment FTW]]. Which is a remix of nothing else other than... [[ BRODYQUEST]].
* [[ The Part Where He Kills You]] is basically ''Portal 2'''s "4,000 Degrees Kelvin". Plays in one of the tensest moments of the game.
* [[ "I AM NOT A MORON!"]] starts off as a cheery electronic theme that turns into pure orchestrated ''awesome''. And ''scariness''.
* [[ "You Know Her?"]] is a fittingly ominous track for GLaDOS [[OhCrap waking up]], [[FromBadToWorse killing Wheatley]] and [[KillItWithFire throwing you into the incinerator.]]
* [[ "An Accent Beyond"]], a fast paced tune that fits perfectly with the situation.
* [[ Bombs for Throwing at You]], [[spoiler: Wheatley's final boss theme.]] It's like "You Can't Escape, You Know", [=GLaDOS=]'s final boss theme from the original, except it is faster, more frantic, and [[spoiler:has some of Wheatley's {{Leitmotif}} mixed in at some points.]]
* [[ Cave Johnson]], we're done here.
* [[ "Don't Do It"]]. It's played twice, first during the confrontation with [=GLaDOS=], and again at the analogous spot in the FinalBoss battle. What's awesome is how it starts out calm, then grows in intensity at "Please press the Stalemate Resolution Button", and then goes freaking nuts after [[spoiler: the BoobyTrap goes off]].
* With the release of the first volume of the official soundtrack, we now have [[ The Courtesy Call]] from the opening without the voice over. And it's as awesome as you imagined it would be.
* [[ The Friendly Faith Plate]] is an awesome tune you may have missed.
* [[ 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 [[SerialEscalation another]] track ([[ Music Of The Spheres]]) to create [[ The Reunion]], arguably one of the [[SugarWiki/AwesomeMusic best pieces in the game]].
* [[ Caroline Deleted]]. Even without knowing the context of the song, you can just feel that something bad is going to happen about half-way through... [[spoiler: even though something good happens instead.]]
* [[ Your Precious Moon]], the music that plays when [[spoiler:Chell fires the Moon-portal. And yes, it is appropriately awesome.]]
* [[ Omg, What Has He Done?]] The first half of the song leaves you feeling terrified at how wrecked Aperture has become... and the second half, a slower reprise of "Wheatley Science", pumps you up in preparation for one hell of a FinalBoss battle that places the weight of all of Aperture on your shoulders.
* [[ Spaaaaace]]: short, incredibly sad for those who finish, and feeling just so ''empty''... [[spoiler: And where is Wheatley? Spaaaace...]]


[[folder: Vocal, Semi-Vocal ]]

* The ending song, [[ "Want You Gone"]], (spoilers, of course) is really good too.
** Like [[VillainSong "Still Alive"]], [[ it sounds better in a minor key]].
** Now available in acapella, [[ courtesy of Peter Hollens and Mystery Guitar Man.]] Hollens' creepy smile really sells it.
* Before the end song, the player is greeted with a [[ choir of turrets]].
** Some humans did it in [[ a capella, and it's pretty damn good!]]
** There's something about the [[ music box version]] of the turret opera that just drives you to tears.
** And during the game you can find some of these turrets singing [[ this.]]
* "[[ Exile Vilify]]", by Music/TheNational, certainly counts.
* [[ PotatOS Lament]]. 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. Despite the digital effects and the nigh-incomprehensable lyrics, the sheer emotion in [=GLaDOS=]' singing is enough to make you want to shed a tear.
* "[=GLaDOS=]'s Song", a CutSong written by Creator/EllenMcLain herself with her husband John Patrick Lowrie playing guitar. [[ 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). In any case, the song is beautiful and shows that [=GLaDOS=] really does have a soft spot for Chell.
* "[[ Wheatley's Song]]", by Music/MiracleOfSound.
* "[[ This Is Aperture]]", a Portal-themed take on "[[WesternAnimation/TheNightmareBeforeChristmas This Is Halloween]]". Some of the voices in there are so good you'd swear they were the original [=VAs=]. [[note]]This is made even more awesome by the fact that all of the voices were done by the ''[[TalkingToHimself same guy.]]''[[/note]]
** The ''other'' [[ Wheatley Song]]. VillainSong at its finest.
** "[[ If I Were A Core]], a single turret's lament about what it would've done in Wheatley's place in a parody of "[[{{Beyonce}} If I Were Boy]]".
* [[ Why Wheatley Why?]] really captures the emotions of most players when [[spoiler: Wheatley betrays you.]]
* [[ Prometheus]], despite being just a bunch of audio clips set to techno music, is an oddly majestic sounding piece.


[[folder: Ambient ]]

* "Triple Laser Phase", a haunting ambient track.
* [[ Love As A Construct]], a beautiful track to accompany a relationship that will never be [[spoiler:until the ending.]]
* [[ There She Is,]] a gorgeous tune that plays as Chell and Wheatley enter GLaDOS's ruined chamber. It's haunting and even somewhat intimidating, and it fits the scene perfectly.
* [[ Space Phase,]] a tune so calm, yet so saddening.
* [[ Wheatley Science.]] It's sinister, mischievous, and almost DannyElfman-like, and hints at just how badly the Enrichment Center is doing under Wheatley's control. Aside from strings and drums, the ENTIRE TRACK is made up of ALARMS. As a menu-screen track, you would hear it when you open up the game in Wheatley's third of the game- so imagine booting up the game, and the first thing you hear is blaring alarms. You KNOW that Aperture is in great danger, and Wheatley doesn't have a clue how to stop it. This is the music of destruction right here.
* Several pieces of brilliant soundtrack are missed simply due to perfect integration during certain contexts; notable examples include [[ synthesized Bach when "flying"]] and [[ rhythmically whirring lasers when near welders]].
* [[ 9999999]] is the very first thing you hear upon playing ''Portal 2'' for the first time. The first 1:07 are quiet and mysterious... and then, at 1:08, the full orchestra kicks in, letting the player know that, this time, the stakes are held even higher than they were the previous game.
* Players only get to hear a small snippet of [[ (defun botsbuildbots () (botsbuildbots))]] on the main menu during GLaDOS's tests, but the full song truly shows how awesome it is. It recycles a single melody a few times, and each time it does so, it grows in strength until it peaks at 1:53. Combined with the visuals on the main menu of the turret assembly line, the song provides a perfect feeling of Aperture's machinery hard at work, and how it all combines together to form an impossibly large facility.
* 'Hard Sunshine' is a beautiful, melancholy track that kind of gives you the impression of what a Hard Light Bridge is like- imagine [[Music/KatrinaAndTheWaves walking on sunshine]], but not being able to feel the actual sun on your skin...


[[folder: Other ]]

* Smooth Jazz will be deployed in 3...2...1...[[ DING]]! Now in the [[ full version]]! The song is called Offering, by Larry Stephens.
* Oh no, [[ He's Playing Classical Music]].
** [[ Machiavellian Bach]], actually. Now that volume's out. Adds all the bits together, for better, um, book-reading. One of Machiavelli's best songs, that, I know, not a moron...
** Also, the [[ electronic version]] of the song that plays when you're being flung, and the [[ mixture]] of the two. If you're wondering, [[ this]] is where it came from.