[Post-Production] My Vision of how I want our Movie to be Edited

My Vision of how I want our Movie to be Edited:

I am very keen on making our movie seem as dramatic and suspenseful as possible, while not having the music overpower the movie clips. The music should enhance the scenes and be chosen carefully to support that mood that we want to represent.
I quite like the idea of having some scenes that occasionally occur quite quickly so that it increases the drama of our movie.
I know that some of my ideas may change while we edit. We have about 12min of footage and we need to cut it town to at least 3:30min.