The 135-voice Napa High School Concert Choir and the Napa Valley Symphony Orchestra will combine musical forces to present “The Many Moods of Christmas,” a holiday concert at the Lincoln Theater on the grounds of the historic Yountville Veterans Home on Dec. 14.

The performance, the eighth collaboration between the two musical ensembles, marks the last time that Napa Valley Symphony Conductor Asher Raboy will conduct the combined groups. Raboy is leaving the symphony at the end of the current season. The two organizations last performed together in 2003.

Featured selections on the concert will be the first and fourth suites of “The Many Moods of Christmas” by Robert Russell Bennett and Robert Shaw, which include arrangements for choir and orchestra of nine different classic Christmas carols.

The choir and symphony will also jointly present “Arise, Your Light Has Come” by David Danner, “Angels We Have Heard On High” and “Joy To the World” arranged by Mack Wilberg, “Candlelight Carol” and “What Sweeter Music” by John Rutter and the “Halllelujah Chorus” from “The Messiah” by George F. Handel.

The Napa High School Concert Choir, Chamber Choir, Vocal Music Workshop and the Barbershop Quartets will also perform a wide variety of a capella holiday music.

The Napa High School Concert Choir is the largest of 14 vocal ensembles at the school conducted by Travis Rogers and Jamie Butler. The ensemble is composed of junior and senior students who have had previous experience singing in an NHS choir.

The group has toured internationally many times and will be performing in the Cathedral of Notre Dame in Paris by special invitation in March 2010.

The choir has won numerous awards at international, national, state, regional and local events. The Concert Choir and Chamber Choir have earned the first place award at the California Golden State Invitational High School Choral competition nine times since 1996.

If you go

• “The Many Moods of Christmas”

• Lincoln Theater Napa Valley Monday, Dec. 14, 7 p.m.

• Tickets, $35

• Reservations, Napa High School music department a 253-3705 or Lincoln Theater

at 944-1300