How to prevent audio from playing when returning to slide

Hello! I would like to find an elegant way to prevent the audio from playing if a user returns to a "main menu" slide.

Let's say that I have a slide that requires a user to view 4 scenarios by clicking on 4 objects. The audio on this "main menu" slide plays and completes. The user clicks one of 4 objects that take them to view a Scenario on a new slide. When they are done viewing a scenario, they click next which returns them to the "main menu" slide with the 4 objects they must click.  (I'm using states to keep track of when user has visited each object/scenario.)

It is uncool to re-play the original audio each time they return to the main menu. I tinkered with triggers but could not figure out how to stop the audio from playing on their subsequent visits to the slide. I have a workaround that will suffice for now. 

I appreciate your ideas! -Jill