OmniNerd - Articles: How Much Does iTunes Like My Five-Star Songs? Apart from the typical comment about user perception, it's much more scientific approach to the issue than has been used in most discussions so far. Still not completely convinced about how random my iPod 2G is in all situations, I still do perceive some clustering effect at times. Not that it plays the same artists over and over again but that some randomly-generated playlists seem to bring together tracks that have something in common, possibly based on hard disk location. Still, this short test provides interesting data.