I have recently been referred to the great music recommendation website. The Pandora project has been running now for 5 years and they have been analysing what seems like every track on earth, from classic’s to new indipendant music lookign for sets of commonalities. Through these they can reccommend you new music based on similarities to an artist you like. Setting this up is easy as you only need to specify an artist and it plays you a wide variety of excellent music! You can even tailor the station by giving your opinion on its selections making more accurate for future users.
Only drawback at the moment is that you have to be a resident in the USA with a valid Zip code can register. But even the free service is good and i can wait for it to be unleashed on the uk. This is one Box you really do want to open