The Martian unreleased ending sequence cues?

When I watched The Martian, I remember the ending (from the moment the lady, forgive my name forgetfulness, catches Matt Damon) had very emotional music with some prominent choir. It’s been more than 6 months since I saw it, but I feel like there was more in that section of the film than what is in the track "Fly Like Iron Man"… are there unreleased cues from the last 20 minutes of the movie that any of you recall were particularly emotive or having choir? It’s the only reason I want the recording sessions, but if I’m wrong and the music is all included in the track mentioned above, I can stop wanting. I’m pretty sure I would have recognized it when I heard it though; that particular part of the movie blew me away and I remember almost immediately during the scene thinking "Gotta get the soundtrack ASAP". It’s not often for me to hear a track in a movie or video game and have my emotional reaction be completely different than when I find and listen to it as a standalone. I don’t believe I was particularly invested in the film, so I’d be surprised if the majority of my reaction was the film itself and not the music (even though the music was what struck me at the time.) It was similar to the latter, choir part of "Advanced Soldier Overture" from CoD: Advanced Warfare, a song I adore. However in what’s included in "Fly Like Iron Man" does not feature *prominent* choir… not by my definition. Not the kind that sings over the action of the movie enough to hear it.