Sure algorithmically, but that is a vast oversimplification. If you are proficient in AI tech then you could sit down and essentially create what you want, but that's not that different to just composing it yourself.

A movie director in this example is not a composer any more than he is an AI architect, he's a movie director. That's why they hire other people to do those jobs. It is well known composers and directors have very close relationships with a requirement of understanding and being able to communicate on the director's goals and desires without him having any technical prowess in the field. Like a CEO, he doesn't care about the process, he just wants the outcome. Some of these relationships span decades of movies for a reason.

You can't get that kind of human understanding through AI. all you can do is plug in data. This can certainly make a mimicry of something that sounds great, but you'd be a far cry from the nuance of intent that comes with a composer/director duo