Check the main album here:
About the cover week and the free week:
Cover week is pretty self explanatory. People record covers. The idea is for them to be quite different in style from the original.
On free week, we can submit songs that we've been working on for a longer period of time, as an incentive to finish old ideas or a to showcase some recent songs not originally intended for the Songwriting Game.
Exactly That consist of whywefight, FoOltz and FlipComplex.