People who have used the player should have noticed a track bar at the top (on the ribbon menu) thats laybeled cmp. vs. human. What this trackbar does is that it controls how much will the tag information (if available) of the songs will affect the playlist generation. It also controls how much the information that we get from social networks (for now thats lastfm) affects the playlist we generate.

At the one side there is the meme signature (song analysis done by machine - comp) and on the other side it is the human factor (tags and social networks). So when the track bar is on the far left, only the computer controls the playlist generation (e.g. only signatures extracted form the songs are counter for). We should say that even if the trabkbar is far to the right (human) the computer factor does still play an important role.