I have recently purchased a kontrol s2 and have thereby entered into the traktor universe. Traktor 2.5 is an incredible program but I do miss some features from virtual dj that i had access to before investing in the kontrol s2. Virtual DJ had a compatible songs "smart playlist" I guess you could call it. Whenever songs were added to it, it would analyse them and see how well they would work with one another. So the compatible songs playlist would change dynamically for each song that i played. Is there anything like that in traktor? The key information was also all analysed within Virtual DJ however from the little bit of research I have done you need to have a 3rd party application to do that for traktor. Which program would you recommend? Thanks so much for the help!