How do I make a music clip continuously play through a slide show?

[Elphaba]

I need to have music for a slide presentation, and was wondering how to make
the music continuously play through all the slides. Right now, for one slide
it starts the song and stops it when I go to the next slide.

 

[Michael Koerner]

This should help.

Play sounds across multiple slides (A WAV runs through it)
http://pptfaq.com/FAQ00047.htm