The music does not fit at all with their wannabe-Dark-Souls visuals complimented by out-of-context, awkward snippets of conversation that never cease.
More like Demon's Souls visuals (and no they are not the same).
At first I didn't get what they were trying to do with with the music, but later I noticed that it fits the trailer nicely even if it may not seem appropriate with what is being presented.
Seriously, did anyone get anything from all the yapping? Did anyone actually pay attention to what they were saying?
Is random dialogue most likely from NPCs I assume. Is kinda difficult to make out what some of them are saying but long story short is that there is a lot of despair and something about the research of memories from the past.
...dunno. We have to wait for TGS for (hopefully) more concrete details.