Concerts MORNING MUSIC -- 11 a.m. tomorrow. A concert by the Friday Morning Music Club. Strathmore Hall Arts Center, 10701 Rockville Pike, North Bethesda. Free. 301-530-0540.

"MESSIAH" -- 2 p.m. Sunday. The National Institutes of Health community orchestra and chorus present a "Messiah" concert and singalong. Proceeds benefit NIH charities. Walt Whitman High School auditorium, 7100 Whittier Blvd., Bethesda. $10; $5, students and seniors. 301-897-8181.

CHAMBER PLAYERS -- 3 p.m. Sunday. Rock Creek Chamber Players perform works by Riisager and Brahms. National Institutes of Health Clinical Center (Building 10), 9000 Rockville Pike, Bethesda. Free. 202-337-8710.

MUSICAL TRADITIONS -- 8 p.m. Monday. Institute of Musical Traditions presents club swing, country blues and Harlem hokum by the Blue Rhythm Boys. Unitarian Universalist Church of Silver Spring, 10309 New Hampshire Ave., Silver Spring. $12 in advance; $15 at the door. 301-754-3611.

Dance SPANISH BALLROOM -- 7:30-11:30 p.m. Fridays, an hour of lessons followed by contradancing with live callers; 8 p.m.-midnight Saturdays, an hour of lessons followed by a live swing band (zydeco on the second Saturday of every month); 3-6 p.m. Sundays, a half-hour lesson followed by waltzing (only on the first and third Sundays); 7:30-10:30 p.m. Sundays, contra, square and folk dancing for more experienced dancers by the Folklore Society of Greater Washington. Spanish Ballroom, Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. Fridays, $6; Saturdays, $8-$10; Sunday afternoons, $5; Sunday nights, $10. 301-492-6282 or www.nps.gov/glec.

Exhibits "SHAPE OF COLOR" -- 10 a.m.-4 p.m. Mondays-Fridays, 6-8 p.m. Tuesdays and Wednesdays, 11 a.m.-2 p.m. Saturdays. The multimedia exhibition "The Shape of Color," by artists Donna Polseno and Nancy Sansom Reynolds. Art Gallery (second floor), Montgomery College, 51 Mannakee St., Rockville. Free. 301-279-5115.

FRASER GALLERY -- 11 a.m.-6 p.m. Tuesdays-Saturdays. "The Body and Our Time," works by Renee McGinnis. Fraser Gallery, 7700 Wisconsin Ave., Bethesda. Free. 301-718-9651 or www.thefrasergallery.com.

CREATIVE PARTNERS -- Noon-6 p.m. Tuesdays-Fridays, 11 a.m.-5 p.m. Saturdays. Abstract paintings on paper and canvas pertaining to nature, human emotions and behavior. Creative Partners Gallery, 4600 East West Hwy., Bethesda. Free. 301-951-9441.

ARTS BARN -- 10 a.m.-6 p.m. Mondays and Tuesdays, 10 a.m.-8 p.m. Wednesdays and Thursdays, 10 a.m.-4 p.m. Fridays and Saturdays, noon-5 p.m. Sundays. Works by artist Mamani Mamani, including paintings and sculptures about his native Bolivia. Gaithersburg Arts Barn, 311 Kent Square Rd., Gaithersburg. Free. 301-258-6350.

CITY HALL GALLERY -- 8 a.m.-5 p.m. Mondays-Fridays. "It's About Time," paintings and works on paper by contemporary artist Irene Glaser. City Hall Gallery, 31 S. Summit Ave., Gaithersburg. Free. 301-258-6350.

ARTS PLACE -- 10 a.m.-5 p.m. Mondays-Saturdays. Sculptures by Herb Witenstein. Rockville Arts Place, 100 E. Middle Lane, Rockville. Free. 301-309-6900 or www.rockvilleartsplace.org.

ART AND DESIGN -- 9 a.m.-5 p.m. Mondays-Fridays. The Maryland College of Art and Design presents the "MCAD Alumni Exhibition," celebrating its 45th anniversary. Maryland College of Art and Design, 10500 Georgia Ave., Silver Spring. Free. 301-619-4454 or www.mcadmd.org.

For Children ADVENTURE THEATRE -- 1:30 and 3:30 p.m. Saturdays and Sundays. "A Little House Christmas," about family that braves the American frontier and learns the true meaning of the holiday season. Glen Echo Park, 7300 MacArthur Blvd., Glen Echo. $6, ages 5 and older; group rates available. 301-320-5331.

IMAGINATION STAGE -- 12:30 and 3 p.m. Saturdays and Sundays. BAPA's Imagination Stage presents "Amelia Bedelia," about the queen of housekeeping's misadventures. BAPA's Imagination Stage, 11301 Rockville Pike, North Bethesda. Call for prices. 301-881-5106.

BLACKROCK -- 1 p.m. Saturday. "Dinorock," an interactive musical featuring marionettes and other puppets. BlackRock Center for the Arts, 12901 Town Commons Dr., Germantown. $6.50. 240-912-1054.

Theater ROUND HOUSE -- 7:30 p.m. Sunday and Tuesday, 8 p.m. Wednesday-Saturday, 3 p.m. Saturday and Sunday. "The Cherry Orchard," set in Russia at the beginning of the 20th century, is about an upper-class family and their servants as they face the impending loss of the family estate. Round House Theatre, 7501 Wisconsin Ave., Bethesda. Call for ticket prices. 240-644-1100 or www.roundhousetheatre.org.

OLNEY THEATRE -- 7:30 p.m. Tuesdays and Sundays, 8 p.m. Wednesdays-Saturdays. "The Secret Garden," based on the novel by Frances Hodgson Burnett. Olney Theatre Center, 2001 Olney-Sandy Spring Rd., Olney. $15-$35. 301-924-3400 or www.olneytheatre.org.

QUOTIDIAN -- 8 p.m. Fridays and Saturdays, 2 p.m Sundays. The Quotidian Theatre Company presents Ibsen's "A Doll's House." The Writer's Center, 4508 Walsh St., Bethesda. $15; $12, seniors and students. 301-816-1023.

Miscellaneous TURKEY RUN -- 10 a.m. today. The 20th annual Thanksgiving Morning 10K Race. Children can participate in a two-mile walk/run. Race starts on Old Georgetown Road at Spruce Street, Bethesda. Free. 301-530-3725.

-- Mark Jones

The Montgomery Extra entertainment calendar lists events as space permits. Mail announcements and photos -- noting date, time, address, cost and phone number -- to Mark Jones, Montgomery Extra, The Washington Post, 51 Monroe St., Suite 500, Rockville, Md. 20850. You may also e-mail announcements to jonesms@washpost.com or fax them to 301-279-5665. Deadline is 14 days before publication.