rhythm+as+a+metaphor+for+existence

[//Batya//] I started out thinking I would analyze the overtones in singer's voices and turn that into a comparison. Billie Holliday and Ella Fitzgerland came to mind because I prefer Billie and thought I could somehow justify my opinion with the data...however, I've decided that the topic seems somewhat limited...and I thought of something else but I'm worried it's not going to work...here goes..

In my paper, I will explore the ways in which music mirrors our own lives, strictly in terms of rhythm. In discussing certain examples (I would like to use Beethoven's Sixth Symphony as well as a cover of a Smith's song by the Dream Academy) I will make the case that we, as listeners, relate to the music because of its use of rythmic patterns and the ways in which those figures work as a metaphor for life.

I checked out the chapter in Ways of Listening on motion in music and that seems to be basically the same idea....should I think of another topic since this one is already a part of our reading?