Just wanted to share this. One player worked with Funcom to produce an expanded 56-track, four-album soundtrack and put it out there for free. Some of it has been released before and other tracks are new (well, new to an MP3 release, at least).
You do have to install AO on Steam and get this DLC, but when you do that you can grab all of the tracks out of the folder for safekeeping and then delete the game if desired. Just really cool stuff, this OST is one of my all-time favorite MMO scores.
Bio Break 
Hmm. I DLd the game and the DLC, but can’t figure out how to get the DLC to install so I can grab the files out. Steam puts the DLC in my library but doesn’t auto-install it.
I had to uninstall and reinstall to get it to download.