Oregon Repertory Singers present “Glory of Christmas” at 4 p.m. Dec. 4, 10 and 11 at First United Methodist Church, 1838 S.W. Jefferson St., Portland. with favorite holiday works including traditional carols and sacred music for the season. Songs include Morten Lauridsen’s “Contre Qui Rose” and “Dirait-On,” Franz Biebl’s world-famous “Ave Maria,” and new works by Naomi LaViolette. ORS Youth Choirs will also be featured under the direction of interim artistic director Erika Lockwood. Get tickets ($25 to $45) at orsingers.org.