Nope, ME & ME2 (and Jade Empire) musics were by Jack Wall, DEHR's is by Michael A McCann (who did Splinter Cell Double Agent, while Jack Wall did Splinter Cell Pandora Tomorrow).

I'm about halfway through (I think) so far I like it a lot. It's not a Deus Ex clone but it's as close as Bioshock was to System Shock 2 so it's good enough for me.

This gives me real good hope for Thief 4 since it's developed by the same studio. Those guys have proven to me that they can adapt an older game to today's standard while keeping it's core intact.