HAPPENIN’ OTSEGO for THURSDAY, AUGUST 2 Young Artists In The Park CONCERT – 7 – 8 p.m. Glimmerglass Opera Young Artist Quartet performs mix of opera, classic musical theater, including selections from West Side Story. Huntington Park, Oneonta. 607-432-1980 or visit hmloneonta.org/calendar/ THEATER – 1:30 p.m. Showing “Silent Night.” About the Christmas Eve Truce between German, Scottish, French soldiers during WWI. Cost, $26-$126. Glimmerglass Festival, 7300 St. Hwy. 80, Cooperstown. Call 607-547-2255 or visit glimmerglass.org/events/silent-night/…