Concerts

Opera

WASHINGTON CHU SHAN Chinese Opera Institute, Tuesday at noon. Free. Woodrow Wilson Plaza, Ronald Reagan Building and International Trade Center, 1300 Pennsylvania Ave. NW. 202-312-1300.

Orchestras

NATIONAL PHILHARMONIC Middle School Summer String Institute, Friday at 7:30, conducted by Phyllis Freeman. Free. Landon School, 6101 Wilson Lane, Bethesda. 301-762-8580.

ARMY BAND and ensembles, Friday at 8. Free. West Terrace, U.S. Capitol. 703-696-3399 or 202- 619-7222.

NAVY BAND and ensembles, Monday at 8. Free. West Terrace, U.S. Capitol. 202-433-2525 or 202- 619-7222.

ARMY BAND -- Tuesday at 7. Free. Baker Park, 121 N. Bentz St., Frederick. 301-228-2844 or 703-696-3399

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 and Thursday 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.

Chamber Groups

NATIONAL PHILHARMONIC Piano Trio, Saturday at 8. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. 301-762-8580.

COVINGTON STRING QUARTET -- Sunday at 3. Free. The Lyceum, 201 S. Washington St., Alexandria. 703-838-4994.

TRINITY CHAMBER PLAYERS -- Sunday at 6. The Lyceum, 201 S. Washington St., Alexandria. 301-881-8969.

LOGAN CIRCLE CLARINET QUINTET -- Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.

Recitals

BETH HORMAN -- violinist, Friday at 8. F. Scott Fitzgerald Theatre, 603 Edmonston Dr., Rockville. 301-762-8580.

ROBERT GROGAN -- carillonneur, Saturday at 6. Free. Netherlands Carillon, Fort Myer and Marshall drives, Arlington. 703-289-2500.

BERTA ROJAS -- guitarist, Saturday at 8. Potomac Music Academy Guitarfest, Harris Theater, George Mason University, 4400 University Dr., Fairfax. 703-218-6500 or 703-993-1380.

BARBARA BAIRD AND JULIA Brown, organists, Sunday at 6. Free. National Shrine Of The Immaculate Conception, 400 Michigan Ave. NE. 202-526-8300.

RODGER BENNETT, CORY Blake and Gray Snead, guitarists, and pianist Dingwall Fleary, Sunday at 7. Potomac Music Academy Guitarfest, Harris Theater, George Mason University, 4400 University Dr., Fairfax. 703-218-6500 or 703-993-1380.

LARRY SNITZLER -- guitarist, and vibraphonist Chuck Redd, Tuesday at 8. Potomac Music Academy Guitarfest, Harris Theater, George Mason University, 4400 University Dr., Fairfax. 703-218-6500 or 703-993-1380.

JOSE LEMOS -- countertenor, Thursday at 6:30. Free. Andres Bello Auditorium, 1300 New York Ave. NW. 202-623-3929.

Choral Groups

NAVY SEA CHANTERS -- Friday at 7:30. Free. Lake Accotink Park, 7500 Accotink Park Rd., Springfield. 703-569-3464 or 703-425-9300.