i can only help with the music part due to my retardedness on scripting, well what i do is go to File>publish settings..a new window will apear, click the flash tab on top, there beneath the audio stream and audio event is a box with the text"override all sound settings" checking it will reduce all music and sounds to 12.5 percent their original file size, this is the simplest compression method, theres compressing each one under the library in different formats like raw and stuff but none sound as good as the default compression in publish settings, so do that.
