The Emerson String Quartet’s 2019-2020 Concert Series at National Museum of Natural History Baird Auditorium, 10th St. and Constitution Ave. NW, is Nov. 3, 6:30 p.m. featuring music by Fanny Mendelssohn, Bartok and Dvorak.; Dec. 8, 6:30 p.m. featuring music by Mozart, Bartok and Dvorak); and April 5, 6:30 p.m. (music by Barber, Beethoven, and Bartok. The Quartet (violinists Eugene Drucker and Philip Setzer, violist Lawrence Dutton, and cellist Paul Watkins) has maintained its stature as one of the world’s premier chamber music ensembles for more than four decades. It has made more than 30 acclaimed recordings and has been honored with nine Grammys including two for Best Classical Album, three Gramophone Awards, and the Avery Fisher Prize. This is the 41st season the quartet is performing at the Smithsonian. Tickets are $60 each or $162 for the series. Members get a discount. smithsonianassociates.org.