all dayLeisureIf they can build them, they...

all day

Leisure

If they can build them, they will come--to Trains Weekend, part of the new “Planes, Trains and Automobiles� interactive exhibition-experience at the Discovery Science Center. Visitors can watch model trains of all sizes make their runs, see demonstrations of airbrushing techniques, take a trackless train ride and meet champion Lego builders. And if all of this train-ing is not enough fun, there will be live theater shows every weekend at 11:30 a.m., 1:30 and 3:30 p.m. until November.

Trains Weekend, Discovery Science Center, 2500 N. Main St., Santa Ana. Daily, 10 a.m.-5 p.m. $11, adults; $8.50, ages 3-17 and seniors; children 2 and younger, free. (714) 542-2823 or www.discoverycube.org.

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1pm

Pop Music

The music and culture of Boyle Heights in East L.A. will be feted with a free Saturday-afternoon program titled “The Eastside Revue.� The musical lineup includes Chicano music pioneer Lalo Guerrero, a latter-day edition of ‘60s rock group Cannibal & the Headhunters, and R&B; jazz-fusion band Tierra. The event, part of the ongoing Boyle Heights Project documenting the culturally diverse neighborhood, also includes performances by the East L.A. Taiko drum group, the Cuauhtemoc Danza Azteca troupe, singer-songwriter Lysa Flores and ‘80s punk band Los Illegals.

“The Eastside Revue,� Japanese American National Museum, 369 E. 1st St., Los Angeles. 1-5 p.m. Free. (213) 625-0414.

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8pm

Music

Beginning his second season at the helm of the Long Beach Symphony, conductor-composer Enrique Arturo Diemecke introduces one of his compositions, “Camino y Vision,� based on the Don Quixote legend. Diemecke has moved the action of the legend to Guanajuato, Mexico, the city where Diemecke was raised. The soloist in the piece will be cellist Cecilia Tsan. The program begins with William Walton’s “Crown Imperial� and ends with Rachmaninoff’s Second Symphony.

Long Beach Symphony, Terrace Theater, 300 E. Ocean Blvd., Long Beach. 8 p.m. $12-$55. (562) 436-3203, Ext. 1.

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7:30pm

Dance

Get ready to hoot and holler: The ninth annual Jazz Dance LA compendium showcases the works of hotter-than-hot and meaner-than-mean, locally based pop, rock and jazz choreographers. Besides Claude Thompson, who co-directs the event with choreographer-teacher Hama, the participating dance-makers include Terry Best, Jackie Sleight, Michael Rooney, Doug Caldwell, Kenji Yamaguchi, Amy S. Flores, Keny Long, Christine Batles, Johanna Sapakie, Chance Taylor, Joseph Malone and Joe Tremaine. Master teacher and choreographer Tremaine will also receive a lifetime achievement award, and his 1979 “ZZYZX� has been restaged especially for the event.

Jazz Dance LA 2002, Luckman Fine Arts Complex, Cal State L.A., 5151 State University Drive, L.A. 7:30 p.m. Also Sunday, 3 p.m. $15 (students) to $30. (323) 343-6600.

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all day

Art

“Space Invaders: Emerging British Architecture,� an international touring exhibition focusing on a new wave of British architects known for altering the concept of designing spaces, opens Saturday at Art Center’s Williamson Gallery. The exhibition is composed of drawings, video works, computer displays and models, which demonstrate how the featured architects borrow from other design fields, resulting in buildings that are less isolated and more interactive.

“Space Invaders: Emerging British Architecture,� Williamson Gallery, Art Center College of Design, 1700 Lida St., Pasadena. Ends Dec. 22. Tuesday-Sunday, noon-5 p.m.; Friday, noon-9 p.m. Frances Anderton will moderate a panel discussion on “Emerging British Architecture� at 4:30 p.m. Friday. Free. (626) 396-2446.

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7:30pm

Pop Music

With fewer than two weeks to go before the release of “Shaman,� the follow-up to 1999’s career-rejuvenating, Grammy-hording “Supernatural� album, Santana serves up a sneak preview of the new material at the venerable group’s concert Saturday at the Hollywood Bowl.

Santana, Hollywood Bowl, 2301 N. Highland Ave., Los Angeles. 7:30 p.m. $30.50 to $80. (323) 850-2000.