ART TALK, Philip Leonard discusses early American portraitist Gilbert Stuart, whose works are on view. Noon, today, Sunday, Tuesday and April 14, National Gallery of Art, West Building, 600 Constitution Ave. NW. Free. 202-737-4215.
CELLO RECITAL, Drew Owen, 12:15-12:45 p.m., National City Christian Church, 5 Thomas Cir. NW. Free. 202-232-0323.
KENNEDY CENTER FREE CONCERTS, members of Ballet Hispanico teach the newest Latin dance steps, and the audience is welcome to dance to live music in the Grand Foyer, 6 p.m. today; taiko drummers from Japan's Tamagawa University, the Luis Garay Percussion World Ensemble and the West Virginia University Steel Ensemble, 6 p.m. Friday, Grand Foyer, 2700 F St. NW. Free. 202-467-4600.
DISEASE LECTURE, Anthony Fauci, director of the Department of Allergies and Infectious Diseases at the National Institutes of Health, discusses bioterrorism and the potential for disease in the wake of the recent tsunami disaster, 7 p.m., American University, Bettelle-Tempkins Atrium, 4400 Massachusetts Ave. NW. Free. 202-885-2986.
"THE PIANO LESSON," August Wilson's Pulitzer Prize-winning drama about family bonds, secrets and sibling rivalry, stars Harriett D. Foy and David Emerson Toney, 8 p.m. Thursdays and Fridays; 2 and 8 p.m. Saturdays (except April 10 and May 1); 2 and 7:30 p.m. Sundays, Tuesdays and Wednesdays, through May 15, Arena Stage, Sixth Street and Maine Avenue SW. $45-$59. 202-488-3300.
RECITAL, clarinetist Steve Rosenthal, violist Marion Richter and pianist Felicia Weiss perform Mozart's "Keglestatt Trio" and Schumann's "Fairy Tales Trio," noon, Martin Luther King Jr. Memorial Library, 901 G St. NW. Free. 202-727-1285.
STONE-CUTTING PROGRAM, curator Valerie Fletcher discusses the works of master sculptor Isamu Noguchi, then joins with geologist Timothy Rose and visitors in the cutting and chiseling of stones like those used by Noguchi, noon-1:30 p.m., Hirshhorn Museum and Sculpture Garden, Independence Avenue and Seventh Street SW. Free; reservations required. 202-633-3382.
CLASSICAL RECITAL, members of the Friday Morning Music Club perform works by Beethoven, Duparc, Schwantner and Chopin, noon, Charles Sumner School, 1201 17th St. NW. Free. 202-333-2075.
JAZZ, the Air Force Band's Airmen of Note, noon, National Museum of American History, 14th Street and Constitution Avenue NW. Free. 202-633-1000.
CHAMBER MUSIC, flutist Gail Vehslage, clarinetist Phyllis Crossen-Richardson, violinist Paula McCarthy, cellist Suzanne Orban and pianist Sayuri Johnson perform works by J.S. Bach, Darius Milhaud and Reinhold Gliere, 1:15 p.m., Georgetown University, McNeir Hall, 37th and O streets NW. Free. 202-687-6933.
"THE INSIDER," 1999 film starring Russell Crowe, Al Pacino and Christopher Plummer. ABC-News reporter Pierre Thomas interviews Jeffrey Wigand, the former tobacco industry whistleblower who is the subject of the film, after the movie, 7 p.m., American University, Harold and Sylvia Greenberg Theatre, 4200 Wisconsin Ave. NW. $10. 202-885-2587.
TWO-PERSON CIRCUS, for ages 4 and older, slapstick artists Smythe and Saucier in "Circo Comedia," a performance of acrobatic tricks, comedy and daredevil stunts, 7 p.m. Friday; 11 a.m. and 1 p.m. Saturday; 1 p.m. Sunday, Kennedy Center, Theater Lab, 2700 F St. NW. $14. 202-467-4600.
SPACE FLIGHT LECTURE, Gene Kranz, a flight director in the National Aeronautics and Space Administration's Mission Control, discusses the teamwork and discipline that made the space program possible and the efforts to save Apollo 13 astronauts Jim Lovell, Jack Swigert and Fred Haise, 8 p.m., National Air and Space Museum, Lockheed Martin IMAX Theater, Sixth Street and Independence Avenue SW. Free; tickets required. 202-633-2398.
SCIENCE LECTURE, George Mason University physicist Karen Sauer discusses "Nuclear Magnetic Resonance-Based Quantum Computing," sponsored by the Philosophical Society of Washington, 8:15 p.m., Cosmos Club, John Wesley Powell Auditorium, 2170 Florida Ave. NW. Free. 703-370-5282.