Jimi Bell has a knack for writing country barnburners laden with pop sensibilities and rock power. Even his relatively understated ode to perseverance, Brantley Gilbert’s “Hard Days,” builds to a soaring outro. He goes for confident swagger on Jon Pardi’s honky-tonk pickup tune “Last Night Lonely.” And with the swirling melodies of Sykamore’s summer-love banger “Just 4 July,” he even edges toward neo-disco.