I'm along-time admirer of Brian Eno. I first listened to his first 4 "rock" albums back in college, and then somewhat later discovered the wonderment of "My Life in the Bush of Ghosts", his collaboration with David Byrne that changed everything I knew about music up to that point in my life.
This song doesn't really attempt to recreate Eno, but represents the last of long series of experiments in sound that he inspired.
what are the most common key signatures in pop music? rock music? hip hop?