FREE. Casa Grande concert choir and band performances. Sunday, the River Town Voices & PVBC Chorus will perform. Caroling, children’s crafts & games, living nativity & more. Food court $3. Sat. & Sun.: 4–8 p.m. Petaluma Valley Baptist Church. 580 Sonoma Mt. Hwy., Petaluma. tinyurl.com/55tfhs5m.