MUSIC Events This Week BIG BAND EXPRESS. Gaslight Theater. 7010 E. Broadway Blvd. 886-9428. Tucson jazz musicians specialize in music of the swing era with their 16-piece band, performing on Monday, October 21 at 7 p.m. Tickets cost $12 adults, $10 seniors, students and military and $6.95 kids 12 and younger. Dinner available next door at Little Anthony's Diner. Call for reservations. ELIZABETH HILL PERFORMS. Bookman's on Speedway. 6230 E. Speedway Blvd. 748-9555. Hailing from Ontario, Canada, Hill brings her own brand of folk rock to Tucson in a free concert on Thursday, October 17 at 7 p.m. LA PASION SEGUN SAN MARCOS. UA Centennial Hall. University of Arizona. Argentinean-Jewish composer Osvaldo Golijov's work is sung by La Schola Cantorum de Caracas choir and accompanied by Orquesta La Pasion on Tuesday, October 22 at 7:30 p.m. Tickets cost $18 to $48 with student discounts. Call 621-3341 for tickets or information. LA TRAVIATA PERFORMED. Tucson Convention Center. 260 S. Church Ave. Arizona Opera Company presents Jeanine Thames and Patricia Johnson making their debut as Violetta plus Chad Shelton and John Bellemer perform as Alfredo and Met regulars John Avey and David Malis play Germont in the classic opera on Friday, Saturday and Sunday, October 19-20. Show times are 7:30 p.m. with a 2 p.m. Sunday matinee. Call 293-4336 for tickets. MARIACHI REYES. Tohono Chul Park. 7366 N. Paseo del Norte. 742-6455. Mariachi is a cultural revolution expressed through a group of musicians encompassing the essence of Mexico. Come hear traditional and contemporary mariachi music on Thursday, October 17 at 7 p.m. in the Performance Garden. Tickets cost $10 general and $5 for members. PHILHARMONIC ORCHESTRA PERFORMS. UA Crowder Hall. University of Arizona music building. 621-3341. A free concert by the UA orchestra takes place on Friday, October 18 at 7:30 p.m. Call 621-2998 for details. THE PRIVY TIPPERS. Bookman's on Speedway. 6230 E. Speedway Blvd. 748-9555. Musical traditions of rural Appalachia are performed in a free concert on Friday, October 18 at 7 p.m. WIND ENSEMBLE PROGRAM. PCC Proscenium Theatre. Pima Community College West Campus, 2202 W. Anklam Road. 206-6986. The PCC Ensemble presents its fall concert on Thursday, October 17 at 7:30 p.m. Tickets cost $5 general, $4 PCC students and seniors. Announcements CATALINA CHAMBER ORCHESTRA AUDITIONS. New members are invited to try out for permanent paid positions in the orchestra. Call Dr. Lasansky for an appointment at 325-2518. OUTRAGEOUS VOCAL ENSEMBLE. Vocalists including sopranos, altos, tenors and basses are invited to audition for Blue Coyote Productions' new vocal ensemble. Must be able to perform solo and in group. Some sight-reading ability and experience in theater or dance is necessary. Call 696-1612 for appointment. STRING PLAYERS. Lutheran Calvary Church. 5601 E. Broadway Blvd. Tucson Adult Amateur String Players Association meet every third Sunday at 1:30 p.m. for chamber music playing. Music for all levels, no auditions. Call 760-6090 for details.