i was wondering if it would be an idea to couple it to the rating. lets say, when the rating is 5 stars, the plug sends that as a loved song to last fm. maybe with an option to change the rule. like for the artist or album etc, so when somebody wants 5 and 4 starts to be loved tracks its easy to change.
it looks like possible in the api from last fm.
gab
ps. i dont rate tracks, was just an idea.