By day, Kevin Martin runs on coffee and the promise of 5 p.m. But by night, it’s bright lights, shiny boots and steel guitars. Together with his friend, Brendan Malone, they makeup “The Cowpokes,” a two-step band playing 1950s country-western tunes wherever and whenever they can. On Tuesdays, they play at the American Legion Post 82, a community center turned cinder block honky tonk where the floor, and the bar, stay packed. The Tuesday nights have become an intergenerational to-do, making dance partners out of tattooed young Nashvillians and graying veterans. Kevin and Brendan eat, sleep and breathe music, reviving honky tonk’s golden age with every show they play.