The appeal of Chattanooga rapper Jason Rayn isn’t immediately evident – whether he is trying to be as clever as Bun B or as witty as Biggie, beginning to approach the charisma of a T.I. or the eclectic talent of Lil’ Wayne, is not really what matters here. Rayn’s shtick, quite simply, is that he’s sounds like a very real dude. Sure, authenticity is a slippery notion, but it is integral to the appeal of Zone ft K$NG and is at...