It was a while ago that I created these tests... They were primarily to examine the amount of character achieveable from different structural designs of the music boxes. I think my conclusion was that they all had a uniquely interesting character, some quite funny, some quite sad. The music is also from an early point in the development process... Biff made several chord sequences and melodies from the videos I gave him and this one seems to fit nicely with this compilation of clips.
Blog Post: http://www.luniere.com/blog/?p=380