How can I indicate that a large sound file has loaded?

I’m loading a large sound file at runtime by putting

<assets path="assets/sounds" rename="sounds" embed="false" if="html5" />

in my project.xml file. I’m wanting to know is there a simple way for me to tell the program to play the file upon loading it?

The PlayingSound project shows how this is done:

I’ll give it a try. Thanks a lot!