If you like Portal 2 check this out

[Ravinx]

Valve has released 2 of 3 volumes of the portal music.
http://www.thinkwithportals.com/music.php
you can also get free ringtones too.
check it out!

 

[_Sushi]

Waiting on the 3rd, my favorite track is the boss music.

 

[Darth]

Yaaaaaaaaaaay