This is a thread that's half music sharing half forum game. The point is mostly self-explanatory from the title of the thread. Each person posts a song which the next poster listens to and posts a review/comment on the song. It doesn't have to be a particularly in-depth review (a few sentences is sufficient), just so long as more thought is put into it than just "that was good" or "that sucked".
Here's the first song to get it started:
