New Compatibility Engine

I think Last.fm should add a new compatibilty engine with other users where it shows the current engine at first but with a button beside to calculate it better. It should calculate with exact genres ( e.g. experimental folk pop) and normal genres (e.g. rock, pop) mash them to together and should check for artists you share and don't. And for the ones you don't it should check for similar artists and calculate the percentage of how that artist fits to the original artist, and the rest of your library.

see here http://getsatisfaction.com/lastfm/top...

For the artists you do share it should check for most played albums or songs from those artists and compare.

It should raise the importance of things played in the last 3 or 6 months, and should check loved tracks too.

It should then calculate a more accurate percentage out of 100 and then a similiar naming scheme ( very low, low, medium, etc.)... and if this person`s compatibility with you is over medium it should automatically calculate recommended artists for you from that person`s library in the areas that you are most compatible in. And if it is under medium a small button to do it if last.fm has calculated enough info to do so.