"The Fallen", the Leitmotif for the eponymous character, stands out for being an extremely creepy and alien combination of measured synthesizer beats and human voices. It shouldn't work, but it does, and the end result is both awesome and a prime example of Hell Is That Noise (and potential Nightmare Fuel).
It's easy to see why Lockdown's Leitmotif was chosen as the trailer music. It's the eerie, discordant track that plays as he stalks out of the smoke and ends your life.
The Main Album
"Your Creators Want You Back", a reprise of Lockdown's theme which play's during his capture of Optimus. It nails the terror and sadness of those involved perfectly.
"Dinobot Charge" is an amazingTriumphant Reprise of the Decision suite. Six and a half minutes of giant robots riding to the rescue on colossal metal dinosaurs doesn't usually get much much more awesome than it already is, but inclusion of this track manages just that.
"Honor to the End" plays during the final showdown between Optimus and Lockdown. And it is incredible.
Nothing's Gonna STAND IN OUR WAY! It's like something right out of a Metal album cover: "Killer metal sharks hacked to death with a band saw, transforming robot turns into a sports car, fights a giant octopus with lasers and all played out to the backing of some classic 80's hair metal. Is there anyway of packing in any more awesomeness into 2 minutes!?!"