This is the intro to "Twilight Techno" by Dimrain47. I listened to the song and figured out the notation by listening and experimenting on my keyboard. It might not be correct, but it sure sounds accurate!
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You can listen to the song here: [link]
It's an amazing work of music and you don't have to like techno to enjoy this song. It has nothing to do with Stephanie Meyer's "Twilight" series.