It says you have to watch a short video ad and then you will be able to download one free Mp3 every Tuesday.

This was their post from last Tuesday ~

"It's Free Music Tuesday 'til Midnight Eastern! Come get your weekly Free, i-Pod compatible hit track now! Just watch one short video ad. Top Artists, top hits, all genres. Easy, Fun, and Free. Click the Free Music Tuesdays tab on the left side of our fan page."

Free All Music - Media/News/Publishing - Atlanta, GA - Free Music Tuesdays | Facebook