These are some good points you bring up although I found it interesting when you said that the majority of the film was Norman Bates. I felt a strong emphasis on finding the true psycho the subject POV always changed when the audience would learn something new towards the narrative. I felt as though the audience sympathized more with Crane then norman because Norman is the killer. I also find it that surprise is more effective than suspense because a lot of times in this movie suspense builds leading to nothing which makes the suspense hope drop and leaves the audience to expect. I agree music creates a more terrifying atmosphere for the film. Towards the end of the film I felt like it was needed to have an ending like the one in the film
