The composer and the date it was composed or how old is it.
Is there a special story about the song?
Who is famous for performing it?
Illustrate the song or make a slide show to the music using photos.
Digital Project Advice
Mac - iMovie tutorial will do this. Another iMovie tutorial
You can also do this with Hyperstudio, Kid Pix Studio Deluxe and Storybook Weaver software (Use their clip art not photos).
Photo Story 3 - free download from Microsoft that lets you easily create narrated "mini-movies" using photographs. It has a built in music generator that allows you to put your story to music, copyright free. Tutorial
Pics4Learning - copyright friendly images for use in education projects
tutorials - Photoshop, Pagemaker, Dreamweaver
LearningElectric - on demand tutorials that build technology skills