Playing Background music across all slides - Storyline 360

The solution is the same and works the same for both Web and LMS publishing options. :-)

What would the line of JavaScript be if I use Owen's 2nd option? Where do I put the relative link?

Reference:

2. put it in a folder. Add a blank html page with the file name index.html in the same folder. Create a scene that the user cannot navigate to and on the one slide in the scene, insert a web object. Point to the folder that contains your music and the index.html page. StoryLine will assume that everything in that folder are assets for the web page sot it will import all of them. Publish once. This allows you to see the folder name SL assigns your assets. Now you have a relative link to the file.

I followed the Javascript instructions and received this error message: "Some of the media in this project cannot be included in this video." I am also wondering how Storyline 360 has not made it possible to easily add continuous music to the background when they have the capability to create videos. I would love to see this feature added in. I have a feeling company firewalls might be preventing me from "linking" the video from a C-drive folder to Storyline?

Copied 1 for 1 from your example storyline file, changed the file name as well - nothing. It's pretty crazy that this isn't an established feature in Storyline - being that it is an established feature in PowerPoint which is incredibly easy to use.

Hey guys. I had a client request this feature and couldn't find an elegant solution anywhere. I managed to come up with my own solution that allows Storyline to pull the audio files from the resources section. You can view a sample here. 

I had to create my own custom javascript, but I put together a video and a blog with all the javascript you'd need to recreate this effect on your own.  

Hope this helps! And happy Storylining! 

-DG