I had thought the background music from the Echo Chamber part of the Fox Dollhouse website would have made a good theme song. Instead, we have a new song from Jonatha Brooke called "What You Don't Know." The first lyric descrbes Echo and the show. Click this link to see for yourself. Watch out, though...the video has lots of clips from future shows.
Oh, and we know she's identified as Jonatha Brooks. Fox has a problem with typos.