So while the MMO no longer exists outside of a few forlorn collector's editions picking up dust on store shelves, the music persists. Tabula Rasa boasted a strong score thanks to the work of Tracy W. Bush. Bush is a name you should know when it comes to MMO soundtracks: He had a huge hand in the World of Warcraft score and contributed to several NCsoft titles (which are all dead, but that's probably not his fault). [Edit: Several readers wrote in to let me know that Curse Mackey, Stacie Cline, Chris Vrenna, and Clint Walsh also contributed to the score. Thanks!]
I find that sci-fi MMOs, particularly shooter-based ones, tend to elicit heavier tracks and more synth work than orchestral, and they are sometimes relentlessly grim. All of the above certainly can be applied to Tabula Rasa, up to and including its final surprising track.