Construction - More Audio

With my monalogue audio now into my project, i thought it was complete and so lissened through it. I reaslised however it was not yet complete as there was something missing. This something was backing music. I have decided to put backing music in at this late stage because without it my films sounds "awkwad" and the sound effects seem fake. So using garrage band i am creating a backing sound track that will start of and build up tension as my film plays through, i am using ambiant noises with guitars and also drum beats.