ANNAPOLIS SYMPHONY ORCHESTRA -- Saturday at 6, conducted by Jose-Luis Novo in music by Copland, Mozart and Sousa, and selections from "West Side Story" and "Harry Potter & the Sorcerer's Stone." Free. Quiet Waters Park, 600 Quiet Waters Park Rd., Annapolis. 410-269-1132.
NATIONAL SYMPHONY ORCHESTRA -- Sunday at 8, conducted by Emil de Cou in works by Copland, Mozart, Tchaikovsky, Gould, Leroy Anderson and Ravel. Free. On the West Lawn of the U.S. Capitol. 202-619-7222 or 202-467-4600.
NAVY BAND and Sea Chanters chorus, Monday at 8. Free. Navy Memorial, 701 Pennsylvania Ave. NW. 202-433-2525.
NATIONAL SYMPHONY ORCHESTRA -- Thursday at 7, conducted by Peter Oundjian with cellist Alisa Weilerstein in Rimsky-Korsakov's "Capriccio Espagnol," Tchaikovsky's "Variations on a Rococo Theme" and Beethoven's Symphony No. 3. Kennedy Center Concert Hall, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).
METROPOLITAN HORN QUARTET -- Sunday at 3. Free. The Lyceum, 201 S. Washington St., Alexandria. 703-799-8229 or 703-838-4994.
TOWSON BRASS QUINTET -- Tuesday at 8:15. Free. Central Presbyterian Church, 7308 York Rd., Towson. 410-704-2787.
STANLEY BABIN -- pianist, Saturday at 1:30. Anderson House Museum,
2118 Massachusetts Ave. NW. 202-785-2040.
EDWARD NASSOR -- carillonneur, Saturday and Monday at 2. Free. Netherlands Carillon, Fort Myer and Marshall drives, Arlington. 703-289-2500.
DIANE WINTER PYLES -- pianist, clarinetist Jean-Francois Bescond and cellist Jan Timbers, Tuesday at 12:10. Free. Church of the Epiphany, 1317 G St. NW. 202-347-2635.