WOLF TRAP OPERA COMPANY -- Mozart's "Don Giovanni," through July 31. Friday at 8 and Sunday at 2. The Barns at Wolf Trap, 1635 Trap Rd., Vienna. 703-218-6500 or 703-938-2404.
BEL CANTANTI -- "Some Enchanted Evening," Saturday at 7:30. Rosborough Hall, Asbury Methodist Village, 409 Russell Ave., Gaithersburg. 301-438-8682.
AMERICAN CENTER FOR PUCCINI Studies -- Puccini's "La Boheme," Thursday at 7:30. Greenridge Baptist Church, 21925 Frederick Rd,. Boyds. 301-528-4305.
NATIONAL SYMPHONY ORCHESTRA -- Friday at 6, conducted by Emil de Cou with 2005 Young Soloists' Competition winners pianist Kimberly Kong and alto saxophonist Maureen Walsh. Free. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
CHESAPEAKE ORCHESTRA -- Friday at 7, conducted by Jeffrey Silberschlag with singer Vonda Shepherd in Bartok's Concerto for Orchestra and Shepherd/Froom's "Songs From the Heart." Free. St. Mary's College of Maryland, Route 5, St. Mary's City, Md. 240-895-2024.
BALTIMORE SYMPHONY ORCHESTRA -- Friday at 7:30, conducted by Hugh Wolff with pianist Yuja Wang in Walton's "Facade Suite No. 1," Liszt's Piano Concerto No. 1 and Schumann's Symphony No. 1, followed by dancing on the outdoor terrace. Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.
AIR FORCE BAND ensembles, Friday at noon. Free. National Air and Space Museum Udvar-Hazy Center, 14390 Air and Space Hwy., Chantilly. 202-767-5658 or 202-633-1000.
ARMY BAND ensembles, Friday and Tuesday at 8. Free. West Steps of the U.S. Capitol. 703-696-3399 or 202-619-7222.
BALTIMORE SYMPHONY Orchestra -- Saturday at 8, in a pops program with the Mambo Kings, followed by fireworks. Oregon Ridge Park, 13401 Beaver Dam Rd., at Exit 20-B off I-83, Cockeysville. 410-783-8000 or 800-442-1198.
NSO SUMMER MUSIC Institute Orchestra, Sunday at 6, conducted by Elizabeth Schulze. Free. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
ANNANDALE ORCHESTRA -- Sunday at 7:30. Free. Newton W. Edwards Amphitheater, Mason District Park, 6621 Columbia Pike, Annandale. 703-941-1730 or 703-324-7469.
NATIONAL CONCERT BAND -- Sunday at 8. Free. Lubber Run Amphitheater, North Columbus and North Second streets, Arlington. 703-228-1850 or 703-228-6966.
NAVY BAND ensembles, Monday and Thursday at 8. Free. West Steps of the 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.
NAVY BAND -- Tuesday at 8. Free. Navy Memorial, 701 Pennsylvania Ave. NW. 202-433-2525.
AIR FORCE BAND ensembles, Wednesday at noon. Free. National Air and Space Museum, Seventh Street and Independence Avenue SW. 202-767-5658 or 202-633-1000.
COLUMBIA CONCERT BAND -- Wednesday at 7. Free. Centennial Park South, 10000 Clarksville Pike, Ellicott City. 410-313-7275 or 410-313-4700.
BALTIMORE SYMPHONY ORCHESTRA -- Thursday at 8, conducted by Jeffrey Kahane with the Baltimore Choral Arts Society in Mendelssohn's "Calm Sea and Prosperous Voyage" and Beethoven's Symphony No. 9. Music Center at Strathmore, 5301 Tuckerman Lane, North Bethesda. 301-581-5200.
CITY OF FAIRFAX BAND -- Thursday at 8. Free. Veterans Amphitheater, Fairfax City Hall, 10455 Armstrong St., Fairfax. 703-385-7858 or 703-757-0220.
NATIONAL SYMPHONY ORCHESTRA -- Thursday at 8:15, conducted by Jo Ann Faletta with flutist James Galway in Mozart's Flute Concerto No. 2 and Dvorak's Symphony No. 9. Filene Center, Wolf Trap Park, 1551 Trap Rd., Vienna. 703-218-6500 or 703-255-1860.
TEMPUS FUGIT PERCUSSION Ensemble and students, Friday at 6. Free. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.
"SHENANDOAH PERFORMS" -- Young artists recitals, Friday at 7, Saturday at 2 and 3:30, and Sunday at 11 and 2. Festival Orchestra concert, Sunday at 8. Shenandoah University, 1460 University Dr., Winchester. 540-665-4569.
FAIRFAX SYMPHONY ORCHESTRA ensembles, Saturday at 1. Sully Historic Site, 3601 Sully Rd., Chantilly. 703-642-7200 or 703-437-1794.
WASHINGTON METROPOLITAN Philharmonic ensembles, Sunday at 3. Free. The Lyceum, 201 S. Washington St., Alexandria. 703-799-8229 or 703-838-4994.
DALE SHIFLER -- organist, Friday at 7:30. St. Joseph's on Capitol Hill, 313 Second St. NE. 202-547-1223.
DUO ERATO -- Friday at 8. Alexandria Guitar Festival, Old Presbyterian Meeting House, 321 S. Fairfax St., Alexandria. 703-848-0077.
TODD FAIR -- carillonneur, Saturday at 6. Free. Netherlands Carillon, Fort Myer and Marshall drives, Arlington. 703-289-2500.
RICARDO COBO & NICOLAS Goluses, Saturday at 8. Alexandria Guitar Festival, Old Presbyterian Meeting House, 321 S. Fairfax St., Alexandria. 703-848-0077.
BEA ANN PHILLIPS-BROWN and Ellen Beard, sopranos, baritone Hal Cleary and pianist Bob Griffith, Sunday at 4. Free. Unitarian Universalist Church of Arlington, 4444 Arlington Blvd., Arlington. 703-276-9039.
BRIAN JONES -- organist, Sunday at 5. Free. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.
FELIX HELL -- organist, Sunday at 6. Free. National Shrine of the Immaculate Conception, 400 Michigan Ave. NE. 202-526-8300.
MICHELLE KIM -- pianist, Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.
U. OF MARYLAND SUMMER Chorus, Saturday at 8, in Mozart's "Solemn Vespers," "Ave Verum Corpus" and "Regina Coeli." Free. Dekelboum Concert Hall, Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.
PHOENIX CHAMBER CHOIR -- Tuesday at 7:30. Free. Washington National Cathedral, Wisconsin and Massachusetts avenues NW. 202-537-6200.