The ever-engaging Sonoma Valley Museum of Art is opening two exhibitions that explore elemental materials, nature, humanity and technology. For “Contemplative Elements,” Sonoma artists Danae Mattes and Frances McCormack use minerals and fiber as inspiration, while “Between Nature and Technology” displays New Orleans artists Courtney Egan and David Sullivan’s animation, sculpture and audio works. Egan and Sullivan appear in conversation on Saturday, and the Left Coast Chamber Ensemble perform on Sunday. The show opens on Dec. 19 at the Sonoma Valley Museum of Art, 551 Broadway, Sonoma. Noon. 707.939.SVMA.