The Washington Post critics choose their favorite shows of the week: CLASSICAL MUSIC

The most unusual concert of the week undoubtedly will be the one given by Canadian guitarist Norbert Kraft and harpsichordist Bonnie Silver, Saturday night at the National Academy of Sciences. Judging by an extraordinary recording made by this pair on the Canadian Fanfare label (DFC 6003), their adaptations of standard repertoire for contrasting plucked sounds are ingenious.

Mstislav Rostropovich will close the National Symphony's subscription season this week with a program of Wagner and Mahler (the Sixth Symphony).

Oratorios in June? Northern Virginians can choose between two today: Haydn's "The Creation" at the Unitarian Church of Arlington or Handel's "Judas Maccabaeus" at the Leesburg Baptist Church. DANCE

The Stuttgart Ballet continues its run at the Kennedy Center Opera House today with performances of "Eugene Onegin," and starting Tuesday evening, a repertory program including "Les Sylphides," "Canto Vital" and "Gaite Parisienne." Tomorrow night, Wolf Trap hosts a four-night engagement by the internationally celebrated Kirov Ballet from Leningrad, including two performances of "Swan Lake" and two evenings of a repertory bill that comprises the "Shades" scene from "La Bayadere," "Chopinina" and "Paquita." FILM

The Joseph Mankiewicz tribute at the American Film Institute continues this week with "Woman of the Year" and "The Philadelphia Story," both starring Katharine Hepburn. Saturday, Mankiewicz's "No Way Out," starring Sidney Poitier.

Wednesday and Thursday at the Library of Congress' Mary Pickford Theater, Preston Sturges' "Hail the Conquering Hero," in a newly restored print.

Friday and Saturday at the Biograph, Bertrand Tavernier's beautiful "Sunday in the Country." POP MUSIC

Anne Murray straddles the line between pop and country more gracefully than most: In either style, she's one of the most engaging voices around. Friday at Wolf Trap.

The second Capital City Jazz Festival features a half-dozen concerts, mostly at the Washington Convention Center. Among the most intriguing: the Afro-Latin Fire concert featuring Tito Puente and his percolating Latin Ensemble, on Friday night; and the Saturday afternoon concert with South African musicians, pianist Abdullah Ibrahim and his fine group Ekaya and trumpeter Hugh Masakela and the all-African band Kalahari.