I am creating a photo video montage, I used the Photos App to start the video. However there is no dynamic control of the volume of the background music. (You can only set it to one volume level for the whole video).

So i was going to save my video without music, then I downloaded Microsoft Movie Maker 10 and wanted to import/use the same stock background music soundtrack. So I am using all Microsoft products and just want to know where the background music file is stored on my harddrive so I can import it into my Movie Maker 10 video.