WASHINGTON NATIONAL OPERA -- Verdi's "La Traviata," through Tuesday: Saturday at 7, Tuesday at 7:30. "A Streetcar Named Desire," through Wednesday: Sunday at 2, Wednesday at 7:30. Kennedy Center Opera House, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
MUNICIPAL OPERA OF BALTIMORE -- Puccini's "Madame Butterfly," through Sunday. Saturday at 8 and Sunday at 4. Brown Memorial Woodbrook Presbyterian Church, 6200 N. Charles St., Baltimore. 410-329-6874.
BALTIMORE SYMPHONY Orchestra -- Friday at 8 and Saturday at 11, conducted by Gunther Herbig with pianist Louis Lortie in Beethoven's Piano Concerto No. 2 and Symphony No. 4 (Saturday morning, first movement only). Thursday at 8, conducted by Yuri Temirkanov with cellist Mischa Maisky in Schumann's Cello Concerto in A Minor, Tchaikovsky's "Eugene Onegin" (excerpts), Bach's "Brandenburg Concerto No. 3" and Mozart's Symphony No. 39. Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.
VIRGINIA GRAND MILITARY Band, Saturday at 8, conducted by Loras J. Schissel. Schlesinger Arts Center, Northern Virginia Community College, 3001 N. Beauregard St., Alexandria. 703-281-3331.
MOUNT VERNON ORCHESTRA -- Sunday at 5, conducted by Ulysses S. James in Sibelius's Symphony No. 5, Francaix's "L'Horloge de Flore," Beethoven's Piano Concerto No. 1 and Nielsen's Concerto for Flute and Orchestra. Bishop Ireton High School, 201 Cambridge Rd., Alexandria. 703-799-8229.
NATIONAL SYMPHONY ORCHESTRA -- Sunday at 8, conducted by Erich Kunzel with Ossie Davis, Alison Krauss & Union Station featuring Jerry Douglas, Brad Paisley, Brian Stokes Mitchell, Joshua Bell, Joe Mantegna, Jason Ritter, Tom Hanks and Charles Durning in a tribute to World War II veterans. Dress rehearsal Saturday at 7:30. Free. West Lawn, U.S. Capitol. l 202-619-7222.
NAVY BAND and Sea Chanters Chorus, Monday at 8. Free. Navy Memorial, 701 Pennsylvania Ave. NW. 202-433-2525.
NATIONAL SYMPHONY ORCHESTRA -- Thursday at 7, conducted by Leonard Slatkin with electric guitarist Marc Ribot in Vaughan Williams's "Fantasia on a Theme by Thomas Tallis," Wallace's "Skvera Electric Guitar Concerto" and Stravinsky's "Petrouchka." Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
MARINE BAND -- Wednesday at 8: West Terrace, U.S. Capitol. Thursday at 7: U.S. Marine Corps War Memorial, Arlington. 202-433-4011.
NAYIRI POOCHIKIAN -- violinist, cellist John Gevorkian, percussionist Leon Khoja-Eynatyan and pianist Virginia Lum, Friday at 8. Embassy of Austria, 3524 International Ct. NW. 301-294-2615 or 301-946-9240.
INDIANA UNIVERSITY SCHOOL of Music ensembles, Friday at 6. Free. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
SILVIA LAZO -- soprano, and guitarist Paul Grove, Friday at 8. Brazilian-American Cultural Institute, 4719 Wisconsin Ave. NW. 202-362-8334.
VIRGINIA WAGNER -- soprano, tenor Celso Ablelo and pianist Enrique Bernaldo de Quiro, Friday at 8. Spanish Ambassador's Residence, 2350 Foxhall Rd. NW. 202-625-2361.
JASON S. DAY -- violinist, Saturday at 7. Free. A benefit for the Suzuki Association of the Greater Washington Area. The Lyceum, 201 S. Washington St., Alexandria. 703-960-0622 or 703-838-4994.
JACQUELINE NEIMAT -- soprano, tenor Antonio Giuliano and pianist George Peachey, Saturday at 8. The Theatre, 291 Gay St., Washington, Va. 540-675-1253.
RICE UNIVERSITY SHEPHERD School of Music ensembles, Saturday at 6. Free. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
ALON GOLDSTEIN -- pianist, Sunday at 5. The Phillips Collection, 1600 21st St. NW. 202-387-2151.
ADAM WARD -- organist, Sunday at 5. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.
CURTIS INSTITUTE OF MUSIC ensembles, Sunday at 6. Free. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
JUILLIARD SCHOOL ensembles, Monday at 6. Free. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
DIANE HEATH -- organist, Thursday at 12:15. Free. National City Christian Church, 14th and Massachusetts NW. 202-232-0323.
NSO YOUTH FELLOWS -- Thursday at 6. Free. Millennium Stage, Kennedy Center Grand Foyer, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
ST. PATRICK'S CHORALE -- Saturday at 7 and Sunday at 3. Free. Hagerstown Community College, 11400 Robinwood Dr., Hagerstown. 301-739-1100 or 301-739-8193.
NATIONAL MEN'S CHORUS with Washington Symphonic Brass and organist Paul Skevington, Sunday at 5. St. Luke Catholic Church, 7001 Georgetown Pike, McLean. 202-244-7191.
COMBINED CHOIRS of St. John's Church and Church of the Epiphany, Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.
WEST POTOMAC HIGH SCHOOL Choruses, Thursday at 7:30. West Potomac High School, 6500 Quander Rd., Alexandria. 703-799-1422.