If they're lucky, talented and charismatic, young musical men in Nashville can find themselves playing a game of musical Let's Make A Deal. Behind Door No. 1 is a truck, a beer cooler and a lady in snug jeans; the challenge is to make anything out of these party-anthem ingredients that feels fresh and isn't insipid. Door No. 2 conceals the tools of traditionalism — a cowboy (or, currently, trucker) hat, an acoustic guitar and a solid but burdensome set of assumptions about what authentic storytelling can be. Behind Door No. 3? That's the hot spot for people who like to dance.