WOLF TRAP OPERA COMPANY -- Donizetti's "L'elisir d'amore," through July 31. Friday at 8, Sunday at 2, Wednesday at 8. The Barns of Wolf Trap, 1635 Trap Rd., Vienna. 703-218-6500 or 703-255-1860.
THE (FORGOTTEN) OPERA CO. -- Mozart's "The Marriage of Figaro," Saturday at 7:30. The Lyceum, 201 S. Washington St., Alexandria. 703-838-4994.
BALTIMORE SYMPHONY ORCHESTRA -- Friday at 7, conducted by Marin Alsop with pianist Jon Kimura Parker in Dvorak's Piano Quartet in E-flat Major, Ginastera's "Variaciones concertantes," Copland's "Appalachian Spring" and Gershwin's "Rhapsody in Blue." Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.
CHESAPEAKE ORCHESTRA -- Friday at 7, conducted by Jeffrey Silberschlag with the Navy Sea Chanters in Strauss's "Also Sprach Zarathustra," Holst's "The Planets" and John Williams's "Star Wars." Free. St. Mary's College of Maryland, Route 5, St. Mary's City. 240-895-2024.
AMERICAN LEGION COMMUNITY Band, Friday at 7. Free. Town Commons, Main and Chester streets, Front Royal. 540-635-9909.
D.C. YOUTH ORCHESTRA -- Friday at 7:30. Free. Carter Barron Amphitheatre, 4850 Colorado Ave. NW. 202-254-2468.
ARMY BAND and ensembles, Friday at 8. Free. West Terrace, U.S. Capitol. 703-696-3399 or 202- 619-7222.
NATIONAL SYMPHONY ORCHESTRA -- Friday at 8:15, conducted by Marvin Hamlisch with soprano Christiane Noll, mezzo-soprano Debbie Gravitte and baritone Doug LaBrecque in "Bravo Broadway 2004!," a pops program. Saturday at 8:15, conducted by Mischa Santora with Loren Kitt and bassoonist Sue Heineman in Gershwin's "Rhapsody in Blue" and "American in Paris," Strauss's Duett-Concertino for Clarinet and Bassoon and Mendelssohn's Symphony No. 4. Filene Center, Wolf Trap Park, 1551 Trap Rd., Vienna. 703-218-6500 or 703-255-1860.
BALTIMORE SYMPHONY ORCHESTRA -- Saturday at 8, conducted by Andrew Constantine with vocalists Jan Horvath and J. Mark McVey in a program of Broadway hits, followed by fireworks. Oregon Ridge Park, 13401 Beaver Dam Rd., Cockeysville. 410-783-8000.
NVCC-ANNANDALE SYMPHONY Orchestra, Sunday at 5, with vocalist Ericka Ovette in a pops concert. Ernst Community Cultural Center, Northern Virginia Community College, 8333 Little River Tnpk., Annandale. 703-569-6580.
NSO SUMMER MUSIC Institute Orchestra, Sunday at 6, conducted by Elizabeth Schulze with violinist Rena Kimura in Glinka's "Kamarinskaya," Sarasate's "Zigeunerweisen" and Schumann's Symphony No. 2. Free. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
CITY OF FAIRFAX CONCERT Band, Sunday at 7:30. Mason District Park, Newton W. Edwards Amphitheater, 6621 Columbia Pike, Annandale. 703-941-1730 or 703-324-8680.
NAVY BAND and ensembles, Monday at 8. Free. West Terrace, U.S. Capitol. 202-433-2525 or 202- 619-7222.
NAVAL ACADEMY BAND ensembles, Tuesday at 7:30. Free. City Dock, Annapolis. 410-293-1262.
AIR FORCE BAND and ensembles, Tuesday at 8. Free. West Terrace, U.S. Capitol. 202-767-5658 or 202- 619-7222.
NAVY BAND and ensembles, Tuesday at 8. Free. U.S. Navy Memorial, 701 Pennsylvania Ave. NW. 202-737-2300 or 202-433-2525.
AIR FORCE BAND and ensembles, Wednesday at noon. Free. National Air and Space Museum, Seventh and Independence SW. 202-767-5658 or 202-357-2700.
MARINE BAND and ensembles, Wednesday at 8. Free. West Terrace, U.S. Capitol. 202-433-4011 or 202- 619-7222.
MARINE BAND and ensembles, Thursday at 7. Free. U.S. Marine Corps War Memorial (Iwo Jima Memorial), on U.S. 50 next to Arlington National Cemetery. 202-433-4011.
CITY OF FAIRFAX BAND -- Thursday at 8. Free. Veterans Amphitheater, Fairfax City Hall, 10455 Armstrong St., Fairfax. 703-385-7858 or 703-757-0220.
TRINITY CHAMBER PLAYERS -- Sunday at 6. The Lyceum, 201 S. Washington St., Alexandria. 301-881-8969 or 703-838-4994.
DAVID KANE & MUSICIANS -- Thursday at 7:30, in the world premiere of Kane's "Emergence: A Cicada Serenade" and other works. Free. Strathmore Hall Arts Center, 10701 Rockville Pike, North Bethesda. 301-530-0540.
WASHINGTON TOHO KOTO SOCIETY -- Friday at 7:30. Free. Lake Accotink Park, 7500 Accotink Park Rd., Springfield. 301-569-3464 or 703-425-9300.
ASSAF SOMMER -- pianist, Friday at 7:30. Warrenton Presbyterian Church, 91 Main St., Warrenton. 540-788-3356.
LEE-FOLIA BRUNT -- soprano, and pianist Michael Crabill, Saturday at 5. Washington Ethical Society, 7750 16th St. NW. 202-723-4044.
JOHN HAMMOND -- carillonneur, Saturday at 6. Free. Netherlands Carillon, Fort Myer and Marshall drives, Arlington. 703-289-2500.
KATHRYN MUELLER -- soprano, mezzo-soprano Marjorie Bunday, countertenors Chris Dudley and Nick Pepin, and organist Neil Weston, Saturday at 7:30. A benefit for the Grate Patrol. St. Paul's Parish Church, 2430 K ST. NW. 866-528-8280.
EINAR JOHANNESSON -- clarinetist, and pianist Martin Berkofsky, Sunday at 4. Warrenton Presbyterian Church, 91 Main St., Warrenton. 540-788-3356.
JEREMY FILSELL -- organist, Sunday at 5. Free. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.
PETER HAAZE -- violinist, and pianist Darya Gabay, Sunday at 3. Free. The Lyceum, 201 S. Washington St., Alexandria. 703-838-4994.
BRIAN MILNIKEL -- organist, Sunday at 6. Free. National Shrine Of The Immaculate Conception, 400 Michigan Ave. NE. 202-526-8300.
ANNA OUSPENSKAYA -- pianist, Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.
RYAN DE RYKE -- baritone, Tuesday at 12:15. Free. St. Paul's Parish, Charles and Saratoga streets, Baltimore. 410-685-5537.
EDWARD NASSOR -- carillonneur, Tuesday at 7:30. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.
CATHEDRAL CHORAL SOCIETY -- Friday at 7:30, with the U.S. Army Orchestra. Free. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-8980
NAVY SEA CHANTERS -- Thursday at 7:30. Free. Herndon Town Green, 777 Lynn St., Herndon. 703-435-6868.