BALTIMORE SYMPHONY ORCHESTRA -- Friday and Saturday at 7:30, conducted by Edward Polochick with soprano Janice Chandler, mezzo-soprano Marietta Simpson, tenor Don Frazure, bass-baritone Dean Elzinga and the Concert Artists of Baltimore Symphonic Chorale in Handel's "Messiah." Saturday at 11 and 2, conducted by Lara Webber in holiday family programs. Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.
ANNAPOLIS SYMPHONY ORCHESTRA -- Friday at 8, conducted by Leslie B. Dunner with soprano Wendi Washington-Hunt and the All Children's Chorus of Annapolis in a holiday pops program. Maryland Hall for the Creative Arts, 801 Chase St., Annapolis. 410-263-0907.
NATIONAL SYMPHONY ORCHESTRA -- Friday at 8, Saturday at 8 and Sunday at 1, conducted by Bruno Weil with soprano Christine Brandes, mezzo-soprano Phyllis Pancella, tenor John Tessier, bass David Pittsinger and the Cathedral Choral Society in Handel's "Messiah." Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
NATIONAL CHAMBER ORCHESTRA -- Friday and Saturday at 8, conducted by Piotr Gajewski with soprano Rosa Lamoreaux, counter-tenor Roger Isaacs, tenor Bryce Westervelt, bass Thomas Stork and the Cantate Chamber Singers in Handel's "Messiah." F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. 240-314-8690 or 301-762-8580.
LANDON SYMPHONETTE -- Saturday at 5, conducted by Richard Weilenmann with soprano Detra Battle Sparrow, mezzo-soprano Madeleine Gray, tenor Philip Bender, bass-baritone Brian Jackson and the Washington Civic Opera Chorus and the Church of the Little Flower Choir in Handel's "Messiah." Landon School, 6101 Wilson Lane, Bethesda. 301-320-1090.
NAVY BAND and specialty units, Saturday at 7:30 and Sunday at 3, in a holiday program. Free, but tickets required. DAR Constitution Hall, 18th and D NW. 202-433-2525.
ROCKVILLE CONCERT BAND -- Sunday at 3, conducted by Vince Patterson. Free. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. 240-314-5006 or 240-314-5004.
AIR FORCE CHAMBER PLAYERS -- Friday at 8. Free. George Washington Masonic National Memorial, 101 Callahan Dr., Alexandria. 202-767-5658.
FOLGER CONSORT -- "The Passion of Scrooge," Friday at 8, Saturday at 5 and 8, Sunday at 2. Folger Shakespeare Library, 201 East Capitol St. SE. 202-544-7077.
COVINGTON STRING QUARTET -- Saturday at 3. The Lyceum, 201 S. Washington St., Alexandria. 703-838-4994.
CITY OF FAIRFAX BAND -- Saturday at 7, with soprano Barbara DeMaio Caprilli, the Fairfax Choral Society and host John Lyon. Free. Fairfax High School, 3500 Old Lee Hwy., Fairfax. 703-757-0220.
NICKI LEHRER -- guitarist, Saturday at 2. Free. Borders Books, 11301 Rockville Pike, North Bethesda. 301-816-1067.
CHORAL ARTS SOCIETY of Washington -- Friday at 2. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
BOWIE SOUNDS OF MUSIC -- Friday at 8. Grace Lutheran Church, 2503 Belair Dr., Bowie. 301-262-1384.
BALTIMORE CHORAL ARTS Society -- Saturday at 11 a.m., in a children's program. Kraushaar Auditorium, Goucher College, 1021 Dulaney Valley Rd., Towson. 410-523-7070.
MASTER CHORALE OF WASHINGTON -- Saturday at 2, Sunday at 8:30. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
CHANTRY -- Saturday at 7:30. St. Paul's Episcopal Church, 2430 K St. NW. 202-625-2855.
NINETEENTH STREET BAPIST Church Music Ministry, Sunday at 5. Nineteenth Street Baptist Church, 4606 16th St. NW. 202-829-2773.
WASHINGTON CHORUS -- Sunday at 5, Monday at 2. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
CANTATE CHAMBER SINGERS -- Sunday at 7. Free. West Garden Court, National Gallery of Art, Sixth and Constitution NW. 202-842-6941.
ROCKVILLE COMMUNITY CHORUS -- Sunday at 7:30, in Handel's "Messiah" (selections) and other works. Free. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. 240-314-5006 or 240-314-5004.
"MESSIAH" SING-ALONG -- Monday at 7:30, conducted by Barry Hemphill with the Metropolitan Chorus. Free tickets have been distributed; unclaimed seats released at show time. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).