Sound and PreLoader Size Problem

I have a preLoader that has worked fine until I put music on my timeline. Even though the AS doesn’t call up the music until the third frame the first frame where only the small graphic and the preloader bar_mc sit are now 1024KB at least where as before it was 12KB. This is causing the preLoader graphic not to even show up until it gets to around 72% loaded. The music doesn’t sit on the first frame so why is it making it so huge. Here is my fla, it was too big to upload here.