Brothers in harmony

Soulful folk tunesters the Avett Brothers visit the River Center on their international tour for their new album, I and Love and You, out yesterday. Their soaring harmonies and odd folk-rock-bluegrass-pop blend of sound have made them hits from Austin to the Ozarks. Festival faves already, it’s the Red Stick’s turn to get to know and love this eclectic, energetic trio. Saturday, 7:30 p.m. $24.