Help with Harlowe audio

Hi,

Just wondering if someone could provide any easy instructions for how to add audio using Harlowe.

I know at this point that SugarCube would have been a better option but I really don't have much more time to work on this project and adding the music will be the final touch. I don't need to do anything fancy- just run the music through the whole game.

What would I have to add to the JS section, and what else would I have to add to do this?

Thanks so much!