Is this your analysis? I'm far from a novice in Music Theory (only knowledgeable it exists), but thing I'd love to see next would be generating a song through a Markov Chain, or even by applying a genetic algorithm and having viewers vote on their favorite renditions.

I've always wanted to take the lyrics of popular songs and run them through a Markov Chain, just to see what could get produced. Ultimate goal would be to generate a song, the lyrics and then have users upload videos of themselves singing it out.