The Twilight Chamber Series on behalf of the homeless will present its final program of the season today at 5 p.m. at the home of associate Utah Symphony concertmaster Gerald Elias, 660 11th Ave.

Featured will be a performance, under Utah Symphony associate conductor Kirk Muspratt, of Wagner's "Siegfried Idyll," in its original chamber scoring. In addition, violist Roberta Zalkind and bassist James Allyn will be featured in Mozart's K. 292 Sonata for Bassoon and Cello, violinists Lynn Braus and Teresa Campbell, violist Leslie Blackburn and cellist Karen Cardon will perform the String Quartet of Samuel Barber and a group of Utah Symphony musicians, including clarinetist Christie Lundquist, will be heard in Weber's Quintet in B flat major for Clarinet and Strings.Seating is limited to 50, at a suggested donation of $35 per person, with a buffet supper to follow the concert.

- THE ADULT CHOIR of First Baptist Church, 617 W. 500 South, in Brigham City, will perform "Heaven's Child," a Christmas cantata, this evening at 6:30. The children's Lighthouse Choir will also sing, and refreshments will follow the concert, conducted by Mac Edwards.

- A CHRISTMAS CAROL SING-IN is scheduled this evening at 7 in the Ogden Tabernacle. Donald H. Ripplinger, assistant director of the Mormon Tabernacle Choir, will conduct, with Lowell Marriott Harrop as organist and narration of the Christmas story by Gordon T. Allred. The public is welcome at this free event.

- THE OGDEN COMMUNITY CHOIR will perform at 7:30 this evening in the Temple Square Assembly Hall. The program, directed by Evelyn M. Harris, will include the Bruckner Te Deum, Robert Russell Bennett's "The Many Moods of Christmas" and a selection of familiar carols. Admission is free.

- THE CHRISTMAS CHORUS, a women's group conducted by Martha Sargent, will sing Britten's "Ceremony of Carols" and other seasonal music today at 7:30 p.m., in the Utah State Hospital Chapel in Provo. Admission is free. Included will be "O Publish the Glad Story," arranged by James Kasen, who will also be organist for several numbers. Original carols and arrangements by John Rutter will also be performed.

- HANDEL'S "MESSIAH" has been presented for 75 consecutive years by the Oratorio Society of Utah, and they conclude their anniversary performances of the Christmas classic this evening at 8, in the Salt Lake Tabernacle.

Crawford Gates conducts the 250-voice choir and members of the Utah Symphony, with soloists JoAnn Ottley, soprano; Doris Brunatti, alto; Dave Arnold, tenor; and David Power, baritone. Those wishing to purchase tickets, priced from $6 to $10, may do so in the Inn at Temple Square, from 2 p.m. until just before the performance.

- THE SALT LAKE SYMPHONIC CHOIR, assisted by the Intermountain Brass Quintet, offers its 17th annual edition of "The Many Moods of Christmas" in the Cathedral of the Madeleine this evening at 8.

George Welch will conduct music of Rutter, Mendelssohn, Adam, Praetorius, Burt, Berlin and various carol arrangements. Admission is free.

- BALLET WEST continues its "Nutcracker" season this week at the Capitol Theatre, with performances Monday through Saturday at 7 p.m. Matinees will also be presented Friday and Saturday at 2 p.m. Next week performances will be presented Dec. 24 at noon and Dec. 26 through 29 at 2 and 7 p.m. Tickets, at $7-$30, are available at the ballet ticket office in the theater lobby, as are $7 tickets to Sugar Plum parties onstage after each matinee.

David Van Alstyne conducts the Utah Chamber Orchestra, with artists of the company alternating in leading roles.

- "HOME FOR THE HOLIDAYS" will be the theme of the Utah Symphony's traditional Christmas concerts this week, with performances Wednesday, Dec. 19, in Weber State College's Browning Center, in Ogden, and Friday and Saturday, Dec. 21 and 22, in Symphony Hall. Starting time for each is 8 p.m.

Under the direction of Joseph Silverstein, the orchestra will be heard in such seasonal standbys as Tchaikovsky's "Nutcracker" Suite, the "Hallelujah" Chorus from Handel's "Messiah," Irving Berlin's "White Christmas" and Jule Styne's "Let It Snow, Let It Snow, Let It Snow."

In addition the Symphony Hall performances will feature performances by area high school choirs - Friday from Box Elder High School and Saturday from Taylorsville High - and winners of the last Utah Symphony Youth Guild Competition. Friday that will be Mira Gill in the Liszt E flat major Piano Concerto and Saturday Janelle Rich, daughter of Utah Symphony violinist Judith Rich, in the first movement of the Beethoven First Piano Concerto.

Other features include a holiday sing-along, a visit from Santa Claus and performances in the lobby by the Wesley Bell Ringers 45 minutes before the concert. Performing as well on the Ogden concert will be the Weber State Choir under Mark Henderson.

For tickets to the Salt Lake concerts, priced from $10 to $25, call 533-NOTE; for tickets to the Ogden performance, call 399-9214.

- UTAH REGIONAL BALLET presents its eighth annual "Nutcracker" in Provo this week, with performances in the de Jong Concert Hall of Brigham Young University's Harris Fine Arts Center Thursday and Friday Dec. 20-21, at 7:30 p.m., and Saturday, Dec. 22, at 2 and 7:30 p.m.

Guest artists with the company are Joseph Woelfel, formerly of Ballet West, as the Sugar Plum cavalier, and Michael Onstad as Drosselmeyer. More than 100 children appear in the production, staged by artistic director Jacqueline P. Colledge. Tickets are $7 for evenings and $6 for the matinees. They are available at the BYU music ticket office.

- MUSICA RESERVATA, the Logan-based early music ensemble, brings its annual Christmas program to Salt Lake City for a performance Thursday, Dec. 20, at 8 p.m. at All Saints Episcopal Church, 1710 S. Foothill Blvd.

Titled "Who Liveth So Merry: Joyful Music From the British Isles," the program will feature the six-member consort of vocalists and instrumentalists in lute songs, early carols and Renaissance dances. Among the instruments will be recorders, gamba and harpsichord.

Tickets, at $7 ($3 seniors), may be purchased in advance at Discriminator Music or at the door.

The same program will be presented Dec. 16, 18 and 19 at 8 p.m. at St. John's Episcopal Church in Logan.

- THE MORMON TABERNACLE CHOIR will present its popular free Christmas concert Friday and Saturday, Dec. 21 and 22, at 7:30 p.m. in the festively decorated Salt Lake Tabernacle.

With Jerold Ottley and Donald Ripplinger conducting, the choir will present "An Evening of Christmas Music - Joy to the World." Included on the program will be Randall Thompson's "Pueri Hebraeorum," "Eight Nights of Hanukkah" by Linda Siegel Carney and "Christmas Garland" by Conrad Susa, with audience participation.

Three selections from Robert Cundick's "The Redeemer" will feature a string, brass and percussion ensemble made up of Choir members. The Salt Lake Children's Choir, conducted by Ralph Woodward Jr., will be guest performers.

- OLD SAINT NICK will pay a return visit to Symphony Hall for next Saturday's Utah Symphony Mervyn's Youth Series concerts - "Here Comes Santa Claus" - to be presented Dec. 22 at 11:30 a.m. and 1 p.m.

Featured will be Youth Guild Competition winners Amanda Moody, in the finale of Saint-Saens' Piano Concerto No. 4, at 1 p.m, and, at 11:30 a.m., violinist Rosalie Lund in extracts from "Winter" from Vivaldi's "The Four Seasons." Joseph Silverstein will conduct a program that will also include music from Tchaikovsky's "The Nutcracker" and Prokofiev's "Lt. Kije," a carol sing-along and traditional holiday songs.

For ticket information call 533-NOTE.