Uma entrevista com Philip Glass sobre O Reaping sugere razões que a trilha sonora pode ter sido rejeitada (sua perícia foi em filmes de personagens ao invés de ação, e a direção do filme continuou mudando):
What was your musical approach to this film?
Oh it was quite different. These kinds of films are more about action instead of character, if I can put it that way. With Notes on a Scandal, you're talking about interpersonal dynamics - they're very delicate, and profoundly dramatic and challenging and exhausting in a way. With The Reaping and Candyman, for that matter, you're talking about events which you can't really explain, and can't be explained by character - they have nothing to do with character! You're talking about music that works more with the surface of the action than with the depths of the character. It's a very different way of working, and I had to learn how to do it.
When I was doing more abstract theater pieces, there are similarities with working on those and horror films. Wouldn't it be funny to compare doing a Beckett play and doing a slasher film? But it's true! You're working with more abstract ideas with these kinds of films. I'm putting it the way I experience working on it, and I've found that horror movies are more difficult to do. They're more challenging for me, and I find them very interesting. So I enjoyed working on Taking Lives. I liked the director, and I liked the performances and it was a very interesting film to work on. I felt that was true of The Reaping too. It was a long process because, again, it was a film where the director (Stephen Hopkins) really began to understand the film as they were making it. There were whole sections re-shot, people re-cast, and things were being changed all along. It was a film that was a voyage of discovery, there's no question.
Glass é conhecido por auto-plágio, e eu encontrei um revisão sugerindo que ele usou algum material rejeitado em sua ópera Appomattox em 2007, o que pode explicar por que não estamos encontrando gravações da partitura ou cópias do filme com essa partitura.