The complete organ works of Ce'sar Franck, the greatest organ composer of the 19th century, will be performed in a spectacular "Franck-a-Thon" beginning at 2 p.m. today in the Foundry United Methodist Church on 16th Street NW. A dozen organists will participate, using the church's new Casavant organ -- an instrument built in the French tradition and precisely tailored to this kind of music.

The Bethune Museum-Archives' fall season will open this afternoon with a recital by soprano Marymal Holmes. Glenmont United Methodist Church in Wheaton continues its Bach-Handel Tricentennial series this evening with a program featuring trumpeter Emerson Head, soprano Leela Nowrangi and baritone Robert Young.

Two visiting male choruses will perform in Washington on Friday: the Choir of King's College, Cambridge, at 8 p.m. in the Washington Cathedral and the Coro Stelutis at 12:30 p.m. in the Western Presbyterian Church.

The premiere of Peter Lieberson's "Feast Day" will be featured in a program of new and old music performed by the Tafelmusik ensemble, Saturday afternoon in the Library of Congress. DANCE

The fall season gets going full blast this week. At Baltimore's Theatre Project, a new dance series starts with dancer-choreographer Ara Fitzgerald and composer Wall Matthews in their Yeats-inspired "Words for Music Perhaps," which has a final performance this evening. The India Festival of Music and Dance brings four styles of Indian classical dance, as well as percussion and folk song numbers, in a week of performances at the Eisenhower starting Tuesday night, as part of the year-long, nationwide Festival of India. The splendid jazz tap dancer Brenda Bufalino appears for two weeks in the Theatre Project's dance series in Baltimore, beginning Wednesday night. Modern dance pioneer Erick Hawkins returns to the Terrace Theater after a four-year absence, to open this season's "Dance America" series with performances Thursday through Saturday. The Claudia Murphey Dance Company presents the premiere of Murphey's "Heat White," a collaboration with lighting designer David Arrow, with music by Klaus Schulze, plus other repertory, Thursday through Saturday at George Mason University's Harris Theatre. FILM

Tuesday through Thursday at the Biograph, the uncut version of Akira Kurosawa's "The Seven Samurai," unequivocally one of the greatest movies of all time. The Russian Film Festival kicks off Friday with "An Unfinished Piece for Player Piano," a beautiful evocation of Chekhov.

Saturday at noon and 3 p.m. at the Biograph, two showings of Lino Brocka's "Bayan ko," a Philippine film noir that won the British Film Institute's Best Picture award for 1984.

The Surrealist Cinema series at the Corcoran Gallery begins Saturday morning at 11 a.m. with Charlie Chaplin's "Dough and Dynamite"; Rene Clair's "Entr-acte"; Henri Storck's "Histoire du Soldat Inconnu"; and Bun uel and Dali's "Un Chien Andalou." The series is coordinated with the current exhibition at the gallery, "L'Amour fou: Photography and Surrealism."

The European Film Festival continues all week at the American Film Institute. Call for details.

The Blue Collar Thirties series at the Library of Congress' Mary Pickford Theater continues Thursday with Fritz Lang's "You and Me." POP MUSIC

Washington's reggae fans treat themselves to the Fourth Annual Reggae Festival today with a dozen bands from the home town, Baltimore, New York and Jamaica in a daylong affair at the Banneker Recreation Complex.

Marshall Crenshaw, whose engaging power pop is firmly anchored in Buddy Holly and the Beatles, sneaks into town for a concert tonight at Georgetown University's McDonough Arena.

David Murray, one of the most provocative young lions of the saxophone, comes to Blues Alley on Monday, headlining with Malachi Thompson's Quintet; and Tuesday through Sunday, it's the master and dues-payer Stanley Turrentine, who seems to be blowing better as he gets older.

Inti-Illimani, the Chilean exiles who helped spearhead the New Song Movement, perform at Lisner on Wednesday.

Sting, ex-Police-man, brings his sparkling jazz-oriented band to close the Merriweather Post Pavilion season on Saturday: Every move he makes remains interesting and elucidating.

Two pianists, more than a continent apart: Keith Jarrett, whose last Kennedy Center concert was an all-classical affair, returns with his empathetic Standards trio (that's what they perform) on Saturday. Same night, at Constitution Hall, Richard Clayderman, Europe's one-man answer to Ferrante and Teicher, works different standards, including, no doubt, "Chariots of Fire."