San Francisco Opera Guild, Atrium Theater, LUCINDA Y LAS FLORES DE LA NOCHEBUENA. A new bilingual opera by Evan Mack and Joshua McGuire. Based on the Mexican folk tale, Lucinda y las Flores de la Nochebuena tells the story of how the poinsettia became a meaningful symbol of the holiday season. Audience members have the added opportunity to participate in the Poinsettia Project -- an initiative to empower students to identify and celebrate their inner strength. WHO IT'S FOR: Grades K–5 in groups of 10–100. Single tickets are also available for individuals and families.