Thinking of Music

So I have started thinking about the music for my short for a while now and although I have a rough idea of what I want, I'll have to wait to the actual edit before I decide what goes well with the film.

On my script are notes with song ideas and where I'm thinking of putting the song in the film so I have an idea of the effect it will have on an audience.

I am also sound on Andy McComb's film 'Dislocation', which I am doing the same thing on the scrip of his film, scribbling down song ideas, the effect I wand the music to have, what sound effects should be placed where and most importantly, how the dialouge should sound etc.