'Nightline' Wants to Hear Your 'Dark Knight Rises' Soundtrack

Famous composer explains how the new free, interactive app he created with RjDj.me works.

If you lived in Gotham City, what would it sound like?

Now you can find out. NOTE: This is for iOS users only.

Academy Award-winning composer Hans Zimmer, who wrote the score for "The Dark Knight Rises" and other blockbuster films, created an interactive FREE iPhone/iPad app in collaboration with RjDj.me that uses propriety augmented sound technology and GPS to recreate what would it sound like to live in the world of Gotham. The app changes its soundscapes depending on what the listener is doing, where they are, and what time of day it is.

"Nightline" wants to hear what your "Dark Knight Rises" soundtrack sounds like. Download the The Dark Knight Rises Z+ app , then record a quick video showing what you did to manipulate the soundtrack - submitters will have to plug their device into a speaker so the camera can capture the sound -- and submit it to us in the form below. Your video could be chosen for a special online feature on the music of "The Dark Knight Rises."

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