A four-disc set collecting your favorite ditties from Portal and Portal 2 is set to test how high your speakers go on October 30. In addition to all of the Portal 2 numbers, this physical collectors edition set (the collection is available digitally for free) will make available 13 songs from the original Portal for the first time ever. There's also a mini-comic bundled in called "Turret Lullaby" but you can read that online right now if you want.

The full list of tunes is available after the break, including such favorites as Jonathan Coulton's "Still Alive" and "Want You Gone," plus the remaining songs composed at Valve.