Can you create multiple background music playlists?

I was hoping to have one audio file play during the intro of a course, and then I have a different audio file playing in a different scene to add atmosphere to a slide show I created with a lightbox.

I know that you can add multiple tracks to a background playlist, but I can't find a way to create more than one playlist.

I tried making a new slide master where I added the intro audio file (a total of 3 slides), but when you go to the next slide, it always restarts the audio.

Is there a way to choose which track plays from the playlist? Could you use variables to control it somehow? Something like play track 1 if in scene 1, play track 2 if scene 2?

Play this track if variable = true?