The Apollo Chamber Orchestra will present a concert of American and German masters at 7:30 p.m. Friday at St. Jane Frances de Chantal Church, 9601 Old Georgetown Road, Bethesda. The concert will feature Virginia Lum on piano, Nathan Clark on trumpet and Noelle Drewes on English horn. Included on the program are Leonard Bernstein’s “Overture” from “Candide,” Aaron Copland’s “Quiet City,” George Gershwin’s “Concerto in F” and Johannes Brahms’ “Symphony No. 2.” Admission is free, but donations are appreciated. For more information, visit www.apolloorchestra.com.