Oregon Repertory Singers pulls all the stops (quite literally) for this year’s Glory of Christmas with legendary guest organist Jonas Nordwall, who will accompany the choir in many of the most famous arrangements of traditional carols including O Come All Ye Faithful. With ORS accompanist Naomi LaViolette, patrons will hear choir, organ, and piano (and sometimes harpsichord) for versions of great holiday classics by Handel, Berlioz, and Poulenc, as well as three audience favorites: Franz Biebl’s Ave Maria, Naomi LaVoilette’s Noel, and Ēriks Ešenvalds Stars for choir and tuned wine glasses.