In the latest instance of big labels throwing comical life preservers at physical formats, Warner Music Nashville announced today that it'll experiment with releasing new music in multiple six-song installments, instead of in full albums. In other words: Congrats, major labels, you've discovered what EPs are again. According to Billboard, the first artist to get the "Six-Pak" treatment will be country singer Blake Shelton. He'll put out one six-song CD in March and another in August.  The report doesn't have any information on how the (sigh) "Six-Pak" will be priced, but it sounds suspiciously like a way to make people pay twice for the same amount of music and double the amount of chintzy plastic crap in the glovebox.