WASHINGTON NATIONAL OPERA -- Verdi's "Il Trovatore," through Nov. 13. Saturday at 2, Tuesday at 7:30. Kennedy Center Opera House, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
HINES-LEE OPERA ENSEMBLE -- Saturday at 2, accompanied by pianists Beverly Babcock, Raymond Jackson and Marvin Mills in "A Tribute to Sylvia Olden Lee." Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
NATIONAL SYMPHONY ORCHESTRA -- Friday at 1:30, Saturday at 8, conducted by Leonard Slatkin with pianist Jean-Yves Thibaudet in Friedman's "The Throne of the Third Heaven of the Nations Millennium General Assembly," Gershwin's Piano Concerto in F Major and Beethoven's Symphony No. 7. Thursday at 7, conducted by Roberto Abbado with pianist Garrick Ohlsson in Vacchi's "Dai calanchi di Sabbiuno," Beethoven's Piano Concerto No. 4 and Mahler's Symphony No. 1 in D Major. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
ARLINGTON SYMPHONY Orchestra -- Friday at 7:30 and Sunday at 3, accompanying the 1922 silent film "Nosferatu." Saturday at 8, conducted by Ruben Vartanyan with violinist Elmar Oliveira in Poulenc's "Sinfonietta," Mahler's "Adagietto" from Symphony No. 5 and Barber's Violin Concerto. Rachel M. Schlesinger Concert Hall, Northern Virginia Community College, 3001 N. Beauregard St., Alexandria. 703-528-1817.
BISHOP IRETON SYMPHONIC Wind Ensemble and Concert Band, Friday at 7:30. Bishop Ireton High School, 201 Cambridge Rd,. Alexandria. 703-212-5162.
ANNE ARUNDEL COMMUNITY College Orchestra and Concert Choir, Friday at 7:30, with baritone Jason Stearns, soprano Mary Anne Barcellona and tenor Kevan Vanek in "A Night at the Opera." Anne Arundel Community College, 101 College Pkwy., Arnold. 410-777-2457.
BALTIMORE SYMPHONY Orchestra -- Friday at 8, Saturday at 8 and Sunday at 3, conducted by Jack Everly in a pops program, including a screening of the 1925 silent film "The Phantom of the Opera" accompanied by the orchestra. Saturday at 10 and 11:30, conducted by Andrew Constantine in a children's program, "Anansi the Spider and Other Bugs, Birds and Beasts," narrated by Rheda Becker. Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.
U. OF MARYLAND SYMPHONY Orchestra, Friday at 8, conducted by James Ross in Elgar's "Cockaigne" Overture, Strauss's Suite from "Der Rosenkavalier" and other works. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.
ANNAPOLIS SYMPHONY Orchestra -- Sunday at 2 and 3:30, "A Symphony Spooktacular" family program, conducted by Julien Benichou in Berlioz's "March to the Scaffold," Dukas's "The Sorcerer's Apprentice" and Mussorgsky's "A Night on Bald Mountain." Annapolis Hall for the Creative Arts, 801 Chase St., Annapolis. 410-263-0907.
CATHOLIC U. SYMPHONY Orchestra and Chorus, Sunday at 3, conducted by Kate Tamarkin and Leo Nestor with organist Edward Alan Moore in Saint-Saens's "Organ Symphony" and Faure's "Pavane and Requiem." Free. Ward Recital Hall, Catholic University, 620 Michigan Ave. NE. 202-319-5416.
U. OF MARY WASHINGTON Wind and Percussion Ensemble, Sunday at 7:30. Woodward Campus Center, University of Mary Washington, 1301 College Ave., Fredericksburg. 540-654-1012.
U. OF MARYLAND UNIVERSITY Band and Community Band, Wednesday at 8. Free. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.
BALTIMORE SCHOOL FOR THE Arts Orchestra and Chamber Chorus, Thursday at 6:30. Free. Baltimore Museum of Art, Art Museum Drive and North Charles Street, Baltimore. 410-625-0403.
ARMY CONCERT BAND -- Thursday at 7:30. Free. Brucker Hall, 204 Lee Ave., Fort Myer, Arlington. 703-696-3399.
CONCERTANTE -- Friday at 8. The Barns of Wolf Trap, 1635 Trap Rd., Vienna. 703-218-6500 or 703-938-2404.
GEORGE CRUMB ENSEMBLE -- Friday at 8. Free, but tickets required. Coolidge Auditorium, Library of Congress, First and Independence SE. 202-397-7328 for tickets (service charges); 202-707-5502 for information.
MENDELSSOHN PIANO TRIO -- Friday at 8. Embassy of Austria, 3524 International Dr. NW. 202-625-2361.
AIR FORCE BAND CHAMBER Players, Friday at 8. Free. George Washington Masonic National Memorial, 101 Callahan Dr., Alexandria. 202-767-5658.
WASHINGTON SAXOPHONE Quartet -- Saturday at 3. A benefit for Loaves and Fishes. Grace Lutheran Church, 16th and Varnum NW. 703-812-8683.
ROME TRIO -- Saturday at 8. Free. Ward Recital Hall, Catholic University, 620 Michigan Ave. NE. 202-319-5416.
CAPITOL WOODWIND QUINTET -- Sunday at 5. Temple Micah, 2829 Wisconsin Ave. NW. 703-352-6506.
KALICHSTEIN-LAREDO-JOHNSON Trio and the Miami String Quartet, Monday at 7:30. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
TRIO SOLISTI -- Tuesday at 7:30. Kennedy Center Terrace Theater, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
TOWSON U. BRASS ENSEMBLE -- Tuesday at 8:15. Free. Stephens Hall Theatre, Towson University, 8000 York Rd., Towson. 410-704-2787.
KOPELMAN QUARTET -- Wednesday at 8. Free, but tickets required. Coolidge Auditorium, Library of Congress, First and Independence SE. 202-397-7328 for tickets (service charges); 202-707-5502 for information.
AIR FORCE BAND CHAMBER Players, Wednesday at 8. Free. McNair Building, Georgetown University, 37th and O NW. 202-767-5658.
NAVY BAND SAXOPHONE Quartet, Thursday at 7. Free, but reservations required. Navy Museum, Building 76, Washington Navy Yard, Ninth and M SE. 202-433-6897.
YING QUARTET -- Thursday at 8. Kay Theater, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.
AIR FORCE BAND SAXOPHONE Quartet, Thursday at 8. Free. John Addison Concert Hall, Harmony Hall Regional Center, 10701 Livingston Rd., Fort Washington. 202-767-5658.
DAVID BALLENA -- pianist, Friday at noon. Free. Arts Club of Washington, 2017 I St. NW. 202-331-7282.
DOUGLAS BECK, ANDREA Boudra, Wayne Earnest and Diane Heath, organists, Friday at 7:30. Westmoreland Congregational United Church of Christ, One Westmoreland Circle, Bethesda. 301-229-7768.
COMPOSERS' SOCIETY of Montgomery County, Friday at 8. Free. Church of the Annunciation, 3810 Massachusetts Ave. NW. 301-309-2077.
TOM HAZLETON -- organist, soprano Denise Gulley and trumpeter Curt Christiansen, Saturday at 4. Kirkwood Presbyterian Church, 8336 Carrleigh Pkwy., Springfield. 703-451-5320.
SVETLANA POTANINA -- pianist, Saturday at 8. St. Ann Catholic Church, 4400 Wisconsin Ave. NW. 202-966-6288.
NATA BROWN -- soprano, Sunday at 2:30. Asbury United Methodist Church, 11th and K NW. 202-628-0009.
LAURENCE ROSENTHAL -- pianist, Sunday at 3:30. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.
IVO POGORELICH -- pianist, Sunday at 4. Center for the Arts Concert Hall, George Mason University, 4400 University Dr., Fairfax. 703-218-6500 or 703-993-8888.
DOMENICO SEVERIN -- organist, Sunday at 5. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.
EDWARD ALAN MOORE -- organist, Sunday at 6. Free. Millennium Stage, Kennedy Center Grand Foyer, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
ANDREAS HAEFLIGER -- pianist, Sunday at 6:30. Free. West Garden Court, National Gallery of Art, Sixth and Constitution NW. 202-842-6941.
PETER THORESEN -- countertenor, Tuesday at 12:15. Free. St. Paul's Parish, Charles and Saratoga streets, Baltimore. 410-685-5537.
FRANCOIS LE ROUX -- baritone, and pianist Mikhail Hallak, Wednesday at 8. Le Maison Francaise, Embassy of France, 4101 Reservoir Rd. NW. 202-944-6091.
AMY LIN -- pianist, Thursday at 7:30. Strathmore Hall Arts Center, 10701 Rockville Pike, North Bethesda. 301-530-0540.
DUKE ELLINGTON SCHOOL OF the Arts Concert and Show choirs, Saturday at 5. Zion Baptist Church, 4850 Blagden Ave. NW. 301-292-4999.
CHANTRY -- Saturday at 7:30. Pohick Episcopal Church, 9301 Richmond Hwy., Lorton. 202-625-2855.
COLUMBIA PRO CANTARE -- Saturday at 8, Brahms's "A German Requiem." Rouse Theatre, Wilde Lake High School, 5460 Trumpeter Rd., Columbia. 301-854-0107 or 410-799-9321.
METROPOLITAN CHORUS -- Sunday at 3, with the Maryland State Boychoir in Rutter's "Mass of the Children" and other works. Mount Olivet United Methodist Church, 1500 N. Glebe Rd., Arlington. 703-933-2500.
WASHINGTON BACH CONSORT -- Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.