1) Open iTunes on a desktop computer
2) Go to the iTunes store
3) In the menu at the bottom of the iTunes Store page, under the column headed "Manage" click on "Redeem"
4) If you are not already logged into your account, you will need to log in at this time
5) On the "Redeem Code" page, under "Enter your gift card or download code" there is a box for the gift code
6) Enter your iTunes GIFTCODE and click the "Redeem" button. The free song will download.
7) Make sure the song plays. Note and report the artist & title.