Three of the best flatpickers in bluegrass -- David Grier, Wyatt Rice and Kenny Smith -- perform Friday in a concert at the Melodee Music Concert Hall in Sterling (703-450-4667), sponsored by the DC Bluegrass Union. Awilo Longomba began his career as a drummer in his hometown of Kinshasa, Zaire. After moving to France he began singing and has since become one of Africa's most celebrated pop artists. Friday, Longomba brings his band to Zanzibar (202-554-9100).

Sunny Sumter is one of Washington's jazz treasures, a young vocalist who gets better and better -- more nuanced, more assured -- and deserves your attention. Sumter performs Saturday at the Dumbarton Church (202-965-2000). In the late '60s Bill Deal & the Rhondells were the biggest band on the beach circuit, and they're still at it. Saturday they'll be at Jaxx (703-569-5940), helping owner Jay Nedrey celebrate his birthday. One of the area's only Beatle tribute bands, the Invasion, has been on barely a once-a-year performance schedule the past few years, and the group performs its ridiculously fun show Saturday at Whitlow's (703-276-9693).

Sunday at DCAC (202-462-7833), French experimental musician Richard Pinhas makes a rare appearance, when he'll perform on guitar with electronic music wizard Jerome Schmidt accompanying. Fans of classic jazz should head to the French Embassy Monday and Tuesday night, when La Maison Francaise (202-944-6091) screens rarely seen footage from several '60s French television tapings of Duke Ellington (Monday) and Thelonious Monk, Earl Hines, Bill Evans and Oscar Peterson (Tuesday).

Thursday at IOTA (703-522-8340), it's 4 Way Street, a folk-rock group made up of some of Philadelphia's best known songwriters -- Ben Arnold, Scott Bricklin, Jim Boggia and Joseph Parsons -- and while they've been around only a few months, the buzz is big. Also Thursday at the Kennedy Center's Millennium Stage (202-467-4600), trumpeter Zach Smith of the Dixie Power Trio pays tribute to Herb Alpert with his group Phat Alpert.

-- Eric Brace