The Old Time Country Music Jamboree at the North Carolina Museum of Art offers the classic Americana music of the Whites and the Williamson Brothers, followed by a screening of Coen Brothers’ film O Brother, Where Art Thou? A sleeper hit this winter and spring, spawning a soundtrack album of traditional music that hit No. 1 on the country charts, O Brother places the humor of Raising Arizona and elements of Homer’s Odyssey in the 1930s American South. The Whites, who perform “Keep On the Sunny Side” in the flick, established themselves in bluegrass before becoming one of the most popular country acts of the 1980s. They represent the great tradition of family harmony in country music, as do Siler City’s The Williamson Brothers, Gary and Tony, the finest performers of 1930s-style brother duet music today. The jamboree is Saturday, June 23 at 7 p.m. Call 715-5923 for details. —Art Menius