This year’s Stagecoach Festival was a love letter to country music’s past and a nod to its wide-open future. While the festival — the genre’s largest, most rollicking reunion that takes place in Cali…

This year’s Stagecoach Festival was a love letter to country music’s past and a nod to its wide-open future. While the festival — the genre’s largest, most rollicking reunion that takes place in Cali…