Fri. Best Bets: 7/31

8:30pm: Music

Russian pianist Natalia Troull makes her Hollywood Bowl debut in the annual “Tchaikovsky Spectacular” with the Los Angeles Philharmonic. Eri Klas conducts; the vehicle is the First Piano Concerto. Klas also leads the Polonaise from “Eugene Onegin” and a suite from the ballet “Sleeping Beauty.” With the concluding “1812” Overture, of course, there will be fireworks.

* “Tchaikovsky Spectacular,” Hollywood Bowl, 2301 N. Highland Ave. Also Saturday, 8:30 p.m. $3-$85. (323) 850-2000.

8pm: Music/Dance

This weekend’s 1998 Taiwan Music and Art Festival opens with the U.S. debut of the 22-member Ensemble Oriol of Berlin presenting “Xiang Aspects,” a tone poem based on a 15th century scroll by artist Xia Chang. A painting of the scroll will be projected above the orchestra, while members of the Ren Jian Shan Hai Dance Theatre interpret the music. The evening also offers the world premiere of composer Maurice Weddington’s “Lunaria.” The festival continues Saturday with a recital by prodigious youngsters playing violin and piano, and Sunday with the Los Angeles Symphonic Camerata, combined choirs and three adult soloists from Taiwan performing the children’s opera “The Dream Journey of the Little Balloon.”

* 1998 Taiwan Music and Art Festival, Luckman Fine Arts Complex, Cal State Los Angeles, 5151 State University Drive. Friday and Saturday, 8 p.m. Sunday, 3 p.m. $10-$50. (323) 343-6600.

all day: Movies

You take the high road and I’ll take the low road and . . . I’ll meet you in the lobby for popcorn. Many a couple may haggle this weekend over whether to see “BASEketball,” the lowbrow sports spoof from lampoon master David Zucker (“Airplane!,” “The Naked Gun”) or period drama “The Governess,” which stars Minnie Driver as a 19th century Jewish woman who disguises her identity to gain employment as a nanny for a well-to-do Scottish family. “BASEketball” features “South Park” creators Trey Parker and Matt Stone, raunchy bathroom humor and well-endowed women. “The Governess” features several of Britain’s most respected actors, a heartbreaking love story and male frontal nudity. Both films are rated R.

* “BASEketball” and “The Governess” both open Friday. Check listings for theaters and show times.

8pm: Theater

Finished in 1946 and intended for the Broadway stage but never produced, the Bertolt Brecht-W.H. Auden adaptation of John Webster’s classic “The Duchess of Malfi,” about a family and its secrets, will finally have its premiere.

* “The Duchess of Malfi,” Theatre of NOTE, 1517 Cahuenga Blvd. Thursdays-Saturdays, 8 p.m. Ends Sept. 5. $10-$12. (323) 856-8611.

8pm: Dance

Winner of four Lester Horton Dance Awards for its 1997 season, the Feet Speak series returns to Occidental College with four more programs of contemporary work--beginning Friday with a visit from Premier Cru. The European chamber ensemble will perform choreography by Lucas Crandall (“The Bow Breaks,” “Night Cap”), Kate Ketchum (“Covade”) and Dominik Schoetschel (“Heart”). The trio of choreographers and their dancers formed this independent touring unit after initially meeting and interacting in workshops--with the Grand Theatre of Geneva the common denominator in most of their careers.

* Premier Cru, Feet Speak series, Keck Theater, Occidental College, 1600 Campus Road, Eagle Rock. Also Saturday, 8 p.m. $5-$15. (323) 259-2922.

7:30pm: Family

The California Youth Theatre, a performing arts training program for young people based at Paramount Studios, celebrates its 35th year with the Lionel Bart musical “Oliver!,” performed by teenagers and young adults, directed and choreographed by Corky Dominguez.

* “Oliver!,” Pan Pacific Park, 7300 Beverly Blvd. Fridays-Sundays, 7:30 p.m. through Aug. 16. $7.50-$15. (323) 956-2503.

FREEBIE: Venture West Theatre Company’s “Damaged Goods,” L.A. Public Library, downtown, 7:30 p.m. (213) 228-7331.