"Lumens & Currents: Elizabeth Chiles and John Swanger." For several years, artists Elizabeth Chiles and John Swanger pursued a thoughtful dialogue about the way their individual art-making practices complemented each other. Now, the pair debuts their latest paintings and, in Chiles’ case, photo-based work that celebrate luminosity, ethereality and the practice of close looking. 11 a.m. to 6 p.m. Thursday-Saturday, noon to 5 p.m. Sunday through Jan. 15. 2213 E. Cesar Chavez St. 512-826-5334, grayduckgallery.com.
"Requiem for Tesla." For one of their last shows at their longtime East Austin home, the Off Center, the Rude Mechs remount a new production of one their most endearing plays — a thoughtful, creative sci-fi theatrical homage to genius and dreamer Nikola Tesla. Live music by Graham Reynolds. 8 p.m. Thursday-Saturday, 5 p.m. Sunday. Off Center, 2211 Hidalgo St. $15-$25. rudemechs.com
"Rockin’ Holiday Extravaganza." Orchestral rock band the Invincible Czars joins the choir Panaromic Voices for a free holiday concert. 7 p.m. Dec. 15. Blanton Museum of Art, 200 E. Martin Luther King Jr. Blvd. Free. blantonmuseum.org.
"Repeat the Sounding Joy! Christmas with Ensemble VIII." The chamber choir Ensemble VIII sings vibrant medieval and Renaissance carols. 7:30 p.m. Dec. 15 at Westlake Hills Presbyterian Church, 7127 Bee Cave Road; 7:30 p.m. Dec. 16 at St. Louis Catholic Church Chapel, 7601 Burnet Road. $10-$45. ensembleviii.org.