Only a couple of weeks after releasing his searching, meditative 4Eva N A Day mixtape, the Mississippi rapper/producer Big K.R.I.T. is giving us a very different side of him: A hard, snarling brag-rap track called "I Got This," which finds K.R.I.T.'s voice slip-sliding all over G-funk organ-whines and cluster-bomb drums. It's great, and you can download it below. Big K.R.I.T. ...