Starbucks is going to give away cards that can be redeemed for songs at the iTunes Music Store for five weeks beginning Oct. 2. In what sounds to my blog-addled ears like a take on the “music blog promo track” idea, each day’s card will be good for a different song from the latte-approved likes of Dave Matthews, KT Tunstall, and Bob Dylan–as long as their records aren’t put out by Warner Music Group or Universal Music Group, that is. [NYT]