So the other day whilst randomly going through some MP3s in my iTunes I had a revelation. As I arrived at the artists whose names begin with the letter "M" I came to my Michael Jackson collection. There they all were - all of his songs from both his Thriller and Off the Wall albums. Because I have OCD I also use the iTunes star-rating option, so every song I have is rated accordingly. Looking at the ratings I applied to each individual track I noticed something strange that had never made itself apparent to me before: As a collective...