Need help downloading music?

i downloaded itunes so i will be able to burn songs onto a cd, but i dont want to buy each individual song. i used to use ares as a form of downloading music (yeah, whatever i know its illegal so dont answer if your gonna complain about it) but now it wants be to buy a subscription in order to download anything, which i dont wanna do. im not aware of any other music-downloading sites or programs (THAT ARE FREE!) so can someone please help? thanks! :)