Playing music across scenes

Hi,

Is there any way to play a music across scenes? I read the tutorial about putting the music in a “soundtrack” swf, and load that soundtrack swf file into the main flash movie. The problem is, I also want to make a volume slider. I don’t know how to control the volume of the music if it is a frame event, so I have to load and play the music by actionscipt. And… when I thought it was alright already… and loaded the soundtrack swf into my main flash movie and play it… there is no sound. hope someone can help me on this… basically what i need is to play music across scenes, and also have a volume slider for the music.

thanks