Using Audacity I created a less-than-a minute narration describing my Final Multimedia Project Topic Selection.  I recorded the narration track, trimmed the beginning and end, and exported it as an mp3 file.  I then imported a royalty free music track.  It was trimmed to match the length of my narration file.  I opened a new project and imported the two mp3 files that I created.  The music track was set to fade in and out.  Also, I adjusted the volume of both tracks before exporting the file as an mp3.