Alex Gaudino - Beautiful (Starkillers Remix)

I was hoping somebody could give me some help and advice on the build up drop which occurs in this song its amazing, I seem to get to grips with all the chords and melodies but build ups and stuff I just cant get my head around br
br
The build up starts at 2.00 thanks guys!br
br
http://www.youtube.com/watch?v=CpqiQa9TQ38