Festival Christmas Concert Sunday, December 19, 7 p.m., at Augustana Augustana Arts presents Augustana’s annual Christmas concert with festive music by Augustana’s Chancel Choir, AVE, and Augustana’s children and youth choirs, along with musicians from Stratus Chamber Orchestra. Enjoy seasonal treasures such as “What Sweeter Music” by John Rutter, “Laud to the Nativity” by Ottorino…