WASHINGTON NATIONAL OPERA -- Verdi's "La Traviata," through June 1: Friday at 7:30, Monday at 7, Thursday at 7:30. "A Streetcar Named Desire," through June 2: Saturday at 7, Tuesday at 7:30. Kennedy Center Opera House, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

MARYLAND OPERA STUDIO -- "Operatic Scenes," Friday at noon. Free. Arts Club of Washington, 2017 I St. NW. 202-331-7282.

BEL CANTANTI OPERA CO. -- Donizetti's "L'Elisir d'Amore." Friday at 7:30: St. James Episcopal Church, 14 Cornwall St., Leesburg. Sunday at 7:30: St. Stephen's Church, 1525 Newton St. NW. 703-771-0996.

"AN EVENING OF OPERA" -- Friday at 8, Metropolitan Opera Chorus members perform arias and ensemble works. A benefit for the Maryland chapter of the MS Society. Kraushaar Auditorium, Goucher College, 1021 Dulaney Valley Rd., Towson. 888-991-7500.

OPERA THEATRE OF NORTHERN Virginia -- Garrison Hull's "Nancy," Friday at 8 and Sunday at 2. Theater I, Gunston Arts Center, 2700 S. Lang St., Arlington. 703-528-1433.

OPERA LAFAYETTE -- Haydn's "Il Mondo della luna," Sunday at 8. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.


NATIONAL SYMPHONY ORCHESTRA -- Friday and Saturday at 8, conducted by James Conlon with violinist Sarah Chang in Smetana's "Three Dances" from "The Bartered Bride," Haas's "Studies for String Orchestra" and Ullmann's Symphony No. 2. Sunday at 7, conducted by Lorin Maazel in the Wagner/Maazel "The Ring Without Words." Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

BALTIMORE SYMPHONY ORCHESTRA -- Friday at 8, Saturday at 8 and Sunday at 3, conducted by Mario Venzago with violinist Leila Josefowicz in Rossini's Overture to "Semiramide" and "Il viaggio a Reims," Mendelssohn's Violin Concerto in E Minor and Schubert's Symphony No. 8 in B Minor. Thursday at 2, conducted by Lara Webber with the Capitol Saxophone Quartet in a pops program. Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.

NAVY BAND -- Friday at 8, conducted by Ralph M. Gambone. Free, but tickets required. Maryland Hall for the Creative Arts, 801 Chase St., Annapolis. 410-263-5544 or 202-433-2525.

AMERICAN BALALAIKA SYMPHONY -- Saturday at 7:30, conducted by Peter Trofimenko with soloist Andrei Gorbachev. Rachel Schlesinger Arts Center, Northern Virginia Community College, 3001 N. Beauregard St., Alexandria. 703-351-1331.

LOUDOUN SYMPHONY -- Saturday at 8, conducted by Mark Allen McCoy in Copland's "Billy the Kid" Suite, Hanson's Symphony No. 2, Ibert's "Concertino da Camera" and Sprenkle's "November." Stone Bridge High School, 43100 Hay Rd., Ashburn. 703-771-8287.

MARINE BAND -- Sunday at 2. Free. Center for the Arts Concert Hall, George Mason University, 4400 University Dr., Fairfax. 202-433-4011 or 703-993-8888.

MOUNT VERNON YOUTH ORCHESTRA -- Sunday at 2, in works by Borodin, Meyer, Bernstein and Mendelssohn. Free. Episcopal High School, 1200 N. Quaker Lane, Alexandria. 703-799-8229.

CAPITAL WIND SYMPHONY -- Sunday at 3, conducted by George Etheridge in a pops program. McLean High School, 1633 Davidson Rd., McLean. 703-938-3521.

FALLS CHURCH CHAMBER Orchestra -- Sunday at 3. George Mason Senior/Junior High School, 7124 Leesburg Pike, Falls Church. 703-548-0332.

GEORGETOWN SYMPHONY Orchestra, Sunday at 5, with the Columbia Flute Choir in Copland's "Appalachian Spring," C. McMichael's "Academy of the Dance" and Beethoven's Symphony No. 6. Bishop Ireton High School, 201 Cambridge Rd., Alexandria. 202-298-1084.

Chamber Groups

ENSEMBLE GAUDIOR -- Friday at 8. Free. Vienna Presbyterian Church, 124 Park St. NE, Vienna. 703-395-2899.

KENNEDY CENTER CHAMBER Players, Sunday at 3. Free. Alden Theatre, McLean Community Center, 1234 Ingleside Ave., McLean. 202-397-7328 or 703-790-0123.

FESTA DELLA VOCE -- Sunday at 3. St. David's Parish, 5150 Macomb St. NW. 202-397-7328.

WOODBRIDGE FLUTE CHOIR -- Sunday at 3. Manassas Baptist Church, 8800 Sudley Rd., Manassas. 703-244-6732.

FLUTES ON THE BRINK -- Sunday at 3. Free. Neelsville Presbyterian Church, 20701 Frederick Rd., Germantown. 301-253-1926.

COLORADO STRING QUARTET -- Sunday at 7. Free. West Garden Court, National Gallery of Art, Sixth and Constitution NW. 202-842-6941.

WASHINGTON SYMPHONIC BRASS -- Sunday at 7:30. St. Luke Catholic Church, 7001 Georgetown Pike, McLean. 703-243-1127.

CONTEMPORARY MUSIC FORUM -- Monday at 6. Free. Millennium Stage, Kennedy Center Grand Foyer, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

"ASIAN CHAMBER MUSIC FESTIVAL" -- Monday at 7:30, by the Asia American Music Society with the Washington Chinese Folk Orchestra, the Washington Toho Koto Society, the Washington Korean Symphony Orchestra and others. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

AIR FORCE CHAMBER Players, Thursday at 4. Free. Cleveland Park Library, 3310 Connecticut Ave. NW. 202-767-5658.


FRIDAY MORNING MUSIC CLUB -- Friday at noon. Free. Sumner School Museum, 1201 17th St. NW. 202-333-2075.

ISOCELES DUO -- cello/piano, Friday at 8. Strathmore Hall Arts Center, 10701 Rockville Pike, North Bethesda. 301-530-0540.

MAX WITTGES -- bass-baritone, and organist Jeffrey Smith, Saturday at 7:30. St. Paul's Episcopal Church, 2430 K St. NW. 202-293-4744.

LEVINE SCHOOL OF MUSIC students and faculty, Saturday at 7:30. Levine School of Music, 2801 Upton St. NW. 202-686-8000.

SHARON STRANGE -- harpist, Sunday at 3. Lincoln Congregational Temple United Church of Christ, 1701 Eleventh St. NW. 202-332-2460.

MICHAEL M. BUNN -- tubist, and pianist Laurie V. Bunn, Sunday at 3. Free. First Christian Church of Falls Church, 6165 Leesburg Pike, Falls Church. 703-237-6263.

PIANO SOCIETY OF GREATER Washington, Sunday at 3. Free. Calvary Lutheran Church, 9545 Georgia Ave., Silver Spring. 301-309-2470.

DEKE AND JOYCE POLIFKA -- pianists, Sunday at 4. Rock Spring Congregational United Church of Christ, 5010 Little Falls Rd., Arlington. 703-538-4886.

ALICIA WARD -- cellist, violinist Nicholas Tavani, organist Jay Parrotta and flutist Jina Park, Sunday at 4. St. Patrick's Episcopal Church, 3241 Brush Dr., Falls Church. 703-533-9454.

WESLEY PARROTT -- organist, Sunday at 5. Free. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.

JEFFREY SIEGEL -- pianist, Sunday at 7. Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.

MARTIN BERKOFSKY -- pianist, Sunday at 7. Davies Memorial Unitarian Universalist Church, 7400 Temple Hill Rd., Camp Springs. 301-292-5716.

FRIDAY MORNING MUSIC CLUB -- Tuesday at noon. Free. Dumbarton House, 2715 Q St. NW. 202-333-2075.

HANNY SCHMID-WYSS -- pianist, Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.

SONYA SUTTON -- organist, Tuesday at 12:15. Free. St. Paul's Parish, Charles and Saratoga streets, Baltimore. 410-685-5537.

ERIC PLUTZ -- organist, soprano Susan Lewis, flutist Ellen Hinkle and saxophonist Irvin Peterson, Tuesday at 6:30. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.

PATRICIA SHROCK -- organist, Wednesday at 1. Free. St. Luke Catholic Church, 7001 Georgetown Pike, McLean. 703-356-0670.

FRIDAY MORNING MUSIC CLUB -- Thursday at noon. Free. Ellipse Arts Center, 4350 N. Fairfax Dr., Fairfax. 202-333-2075.

MARK COLE -- organist, Thursday at 12:15. Free. National City Christian Church, 14th and Massachusetts NW. 202-232-0323.

Choral Groups

ST. MATTHEW'S Schola Cantorum and Gregorian Scholars, Friday at 7:30. St. Matthew's Cathedral, 1725 Rhode Island Ave. NW. 202-347-3215.

CHORAL ARTS SOCIETY OF Washington -- Friday at 8 and Saturday at 1, conducted by John Adams and Norman Scribner with soprano Audra McDonald in music by Adams, Verdi, Ives, Gershwin and Berlin. Rachel Schlesinger Concert Hall, Northern Virginia Community College, 3001 N. Beauregard St., Alexandria. 202-244-3669.

GAITHERSBURG COMMUNITY Chorus, Saturday at 7. Gaithersburg High School, 314 S. Frederick Ave., Gaithersburg. 301-258-6350, Ext. 123.

CONVIVIUM -- Saturday at 7:30. St. George's Church, 915 N. Oakland St., Arlington. 703-339-8770.

VOICES XXI -- Brahms's "Missa Canonica" and other works. Saturday at 7:30: Riverdale Presbyterian Church, 6513 Queens Chapel Rd., University Park. Sunday at 4: National Shrine of the Immaculate Conception, 400 Michigan Ave. NE. 240-643-6563.

THOMAS CIRCLE SINGERS -- Saturday at 8. St. Columba's Episcopal Church, 4201 Albemarle St. NW. 202-232-3353.

MUSIKANTEN -- Sunday at 3. Reservations required. Montpelier Cultural Arts Center, 12826 Laurel-Bowie Rd., Laurel. 301-953-1993.

WESTMORELAND CONGREGATIONAL United Church of Christ Chancel Choir, Sunday at 4. 1 Westmoreland Circle, Bethesda. 301-229-7768.

CONVIVIUM -- Sunday at 4. Immanuel Church on the Hill, 3606 Seminary Rd., Alexandria. 703-339-8770.

ARCO VOCE -- Sunday at 5. The Phillips Collection, 1600 21st St. NW. 202-387-2151.

ROCKVILLE CHORUS -- "Musicals and Madrigals," Sunday at 7:30. Free. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. 240-314-8682.

D.C. PUBLIC SCHOOLS Honors Chorus, Monday at 11. Free. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

CONGRESSIONAL CHORUS -- Wednesday at 7:30. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).