Anatomy of a Murder

I think that jazz music was a good choice for Anatomy of a Murder, both because of the genre of movie and what the music was trying to convey. The film is, for the most part, a legal noir, so jazz is a perfect fit for the typical mix of sexuality, mystery and violence. Because jazz is so versatile, it can be used for almost any mood and still be recognizable as jazz music.
While the music in the film was a mixture of both diagetic and underscoring, I felt that no matter how the music was worked into the scene, it was meant to convey the mood of Paul. He is always on the screen when the music is playing, and by using such a distinct style of music, it can always be traced back to him. When Laura is on the screen, the music is sexual and mysterious. When he is returning from his fishing trip, alone and happy, the music is upbeat and energetic.

The Adventures of Robin Hood

I felt that the score of The Adventures of Robin Hood followed classic Hollywood themes in terms of the instruments used and how they were implemented. More modern scores have a heave use of piano and pop songs, while Robin Hood was almost exclusively horns, drums and fast-paced strings. Having moved beyond the intro/closing style of music, Robin Hood uses music in almost every scene both as filler and emotional triggers.
Especially during the introduction scene to Robin, every time the camera switches between characters, the music changes as well. There is not a blanket theme, repeating over and over in the background, but rather the score changes as the mood of the scene changes and helpfully tells the audience, in a somewhat overdone way, what they are supposed to be feeling. At all time, the score is upbeat, loud and rousing, even when the villains are on screen.