Gathered around a single mic, Oyo’s music is equal parts honky-tonk and barn dance, with an indie rock undercurrent. Born on the banks of the Ohio River, the six-piece Appalachian roots band formed from jam sessions in the back of Marietta’s JustAJar Design Press. And like that big muddy river, Oyo is fed by many influences and tributaries upstream: folk, bluegrass, old-school country, and rock & roll.