The Marlbrook Chamber Players will commemorate their 20th anniversary with a concert on Nov. 3 at 3 p.m. in the Wilson Concert Hall at Washington and Lee University. Tickets are not required. The Marlbrook Chamber Players are Jaime (McArdle) Blees, violin; Julia Goudimova, cello; and Anna Billias, piano — alongside former members Mark Taylor, violin; Megan Mason on viola; and Timothy Gaylard, piano. The program features the rich melodies of Borodin’s Piano Quintet and Mendelssohn’s Trio. After the performance, audience members can meet the Marlbrook Players at a reception.