It seems to me that one of the tracks is something about Hiroshima, but I can't find any mention of it. Is there a piece with Hiroshima in the title, or am I mistaken?
No that doesn't sound pretentious to me. It sounds like that was your normal reaction. We've all had that reaction to a film at one time or another. I had never heard the piece, so I did not. It was certainly an amazing scene, if not the best of all time, then certainly one of the best.