TRACES OF BLUE
This jazz-influenced Howard University a cappella group of 10 singers mixes gospel, hip-hop, pop and R&B. Competing as the group Afro Blue, they finished fourth on NBC's “The Sing-Off.” The group conducts a Master Class, then takes the stage for a concert. Master class: 10:30 a.m. Feb. 9, $10; concert: 8 p.m. Feb. 9. $16. 632-5555.