Amid the volatile divisiveness of the Vietnam War, the Nitty Gritty Dirt Band’s 1972 album, “Will the Circle be Unbroken,” brought together musicians from conservative Nashville with what Roy Acuff characterized as “a bunch of long-haired West Coast boys.” The album sparked a revolution in American music, contributing significantly to the popularity of country-rock and bluegrass music in the ’70s. Commemorating and celebrating that seminal event, Danny Gotham and other local pickers and singers will host their fourth annual show, “Songs from the Circle 4,” Friday at 8 p.m. at the ArtsCenter in Carrboro. Tickets are $9-$15. More info at artscenterlive.org.
▪ Also Friday, Celtic Woman brings its song-and-dance revue to the Durham Performing Arts Center. More at dpacnc.com.