Reznor and Ross had composed three soundtracks for David Fincher which earned them widespread acclaim and an Academy Award for The Social Network (2010).

"[1] As part of the research for the soundtrack the two were given access to previously unreleased FBI files surrounding the events of the Boston Marathon bombing that the film was based on.

Most of the piano and live strings were filtered through a specially built for the purpose device which consisted of "two tape machines hooked to a computer, where it just endlessly locks something in and copies from one to the next, each one degenerating another time.

For the minutes before the bombing, however, they decided to not employ direct tension but have Reznor play the piano in a way that creates "a sense of dread that’s building up".

It gets difficult.All music is composed by Trent Reznor and Atticus RossAn alternate album For Your Consideration (FYC) was sent by CBS Films/Lionsgate to awarding bodies.