Audio app

I was attempting to create an audio channel that has some of my churches audio sermons on it. I edited the example audioapp to play a few of the mp3 files located on the server. Everything worked great.

Then I wanted to break up the sections, say 2013 sermons and 2014 sermons. I figured I could just add another mp3 file with a different name and add it in like the wma or npr. That did not work.

Any suggestions or words of wisdom. I am not a programmer but I understand enough code to be dangerous. Hehe

Thanks for any help