All you’ve gotta do is join the Apple Students group and click on the add at the top of the group page. It’ll then message you a code to use in iTunes (when you’re in the music store, look for the “Redeem” link part way down the left side of the page) that’ll let you down the 25 songs for the week.

It appears this promotion will be going through the end of September.

The sampler for this week, “Alternative,” includes songs from The Early November, Cartel, My American Heart, Grandaddy, 30 Seconds to Mars, and more. See the full list at the Apple Students group on Facebook.