Pop{vbar}Rock{vbar}Folk{vbar}Jazz{vbar}Etc.KUKU Friday at noon. Free. Old Post Office Pavilion, 1100 Pennsylvania Ave. NW. 202-289-4224. THE BARBER BROTHERS Friday at 7:30 and 9:30. KC Jazz Club, Kennedy Center Terrace Gallery, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

U. OF MARY WASHINGTON JAZZ OCTET Friday at 7:30. University of Mary Washington, 1301 College Ave., Fredericksburg. 540-654-1055.

CELTIC WOMAN Friday at 8 and Saturday at 2 and 8. The Hippodrome, France-Merrick Performing Arts Center, 12 N. Eutaw Street, Baltimore. 202-397-7328, 410-547-7328 or 410-752-7444.

THE ERIC FELTEN JAZZ QUARTET Friday at 8. Free. Old Town Hall, 3999 University Dr., Fairfax. 703-352-2787.

KEN KOLODNER & ELKE BAKER Friday at 8. Cellar Stage, Faith Community United Methodist Church of Hamilton, 5315 Harford Rd., Baltimore. 410-521-9099.

PROJECT NATALE Saturday at 1. Free. Old Post Office Pavilion, 1100 Pennsylvania Ave. NW. 202-289-4224.

MATT WINN Saturday at 7. Ernst Community Cultural Center, Northern Virginia Community College, 8333 Little River Turnpike, Annandale. 703-758-2569.

"RADIO FROM DOWNTOWN" Saturday at 7:30, with Lisa Moscatiello, Fred Lieder, Amy Nicholson, the Downtown Players, the No-No Nonette and more. Avalon Theatre, 40 E. Dover St., Easton. 410-547-7328 or 410-822-7299.

JASON MORAN & THE BANDWAGON Saturday at 7:30 and 9:30. KC Jazz Club, Kennedy Center Terrace Gallery, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

JONATHAN EDWARDS Saturday at 7:30. The Barns at Wolf Trap, 1635 Trap Rd., Vienna. 877-965-3872 or 703-938-2404.

BEN JONES Saturday at 8, "Cooter's Excellent Adventure." The Theatre, 291 Gay St., Washington, Va. 540-675-1253.

GUY VAN DUSER & BILLY NOVICK Saturday at 8. Westmoreland Congregational United Church of Christ, 1 Westmoreland Cir., Bethesda. 301-654-6403.

CHUCK DURFOR & ED KERNAN Sunday at 3. Ernst Community Cultural Center, Northern Virginia Community College, 8333 Little River Turnpike, Annandale. 703-758-2569.

GUY VAN DUSER & BILLY NOVICK Sunday at 3. Avalon Theatre, 40 E. Dover St., Easton, Md. 410-822-7299.

VANDAVEER Sunday at 6. Free. Millennium Stage, Kennedy Center Grand Foyer, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

THE CHIEFTAINS Sunday at 7:30. The Joseph Meyerhoff Symphony Hall, 1212 Cathedral St., Baltimore. 410-783-8000 or 800-442-1198.

JOHN GUERNSEY Mondayand Tuesday at noon. Free. Old Post Office Pavilion, 1100 Pennsylvania Ave. NW. 202-289-4224.

THE BARRY HARRIS TRIO Tuesday at 5:30. Gildenhorn Recital Hall, Clarice Smith Performing Arts Center, Route 193 and Stadium Drive, College Park. 301-405-2787.

CHERISH THE LADIES Tuesday and Wednesday at 8. The Barns at Wolf Trap, 1635 Trap Rd., Vienna. 877-965-3872.

THE GEOFFREY FIOLO TRIOWednesday at 6. Free. Millennium Stage, Kennedy Center Grand Foyer, 2700 F St. NW. 202-467-4600 or 800-444-1324 (TDD: 202-416-8524).

LILY NEILL Wednesday at 7:30. The Mansion at Strathmore, 10701 Rockville Pike, North Bethesda. 301-581-5200.

CHAVA ALBERSTEIN AND DAVID BROZA Wednesday at 8. Lisner Auditorium, 730 21st St. NW. 202-397-7328 or 202-994-6800.

BONNIE RIDEOUT'S CALEDONIA Thursday at 8. The Music Center at Strathmore, 5301 Tuckerman Lane, North Bethesda. 301-581-5100.

DancingTHE FABULETTES Friday at 8:30. Washington Hilton Dulles Airport, 13869 Park Center Dr., Herndon. 703-359-9882.

THE OFF'N ENSEMBLE Fr iday at 8:30; contra lesson at 7:30. Spanish Ballroom, Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. 240-221-4974 or 301-634-2222.

THE JACQUES JOHNSON BAND Friday at 9; swing lesson at 8. Towson Armory, 307 Washington Ave., Towson. 410-583-7337.

KING CADILLAC Friday at 9; swing lesson at 8:30. Chevy Chase Ballroom, 5207 Wisconsin Ave. NW. 703-359-9882 or 202-363-8344.

THE TOM CUNNINGHAM ORCHESTRA Saturday at 9; swing lesson at 8. Spanish Ballroom, Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. 703-359-9882 or 301-634-2222.

THE NEW HIP TRIO S unday at 7:30; traditional American dance lesson at 7. Spanish Ballroom, Glen Echo

Park, 7300 MacArthur Blvd., Glen Echo. 202-546-2228 or 301-634-2222.

THE JOKER'S WILD Tuesday at 9. Clarendon Ballroom, 3185 Wilson Blvd., Arlington. 703-359-9882 or 703-469-2244.

COLLEEN REED, FRANCINE KRASOWSKA & KARIN LOYA English country dancing, Wednesday at 8. Glen Echo Town Hall, 6106 Harvard St., Glen Echo. 202-546-2228.