The Glorious - Handel Messiah, presented by the Pacific Chamber Orchestra under the direction of Conductor Lawrence Kohl. At the end of the concert presentation, the audience is invited to join in with a sing-a-long reprise of the famed Hallelujah chorus. Sunday, Dec. 1, 3 p.m., at the Bankhead Theater, 2400 First St. in Livermore. (An additional show takes place in Lafayette on Saturday.) Tickets may be purchased for online at www.pacificchamberorchestra.org or pvpac.org, or by calling 925.373.6800.