Opus 7 Vocal Ensemble and St. James Cathedral’s youth ensemble, Jubilate, perform Muehleisen’s The King of Glory, for treble choir and SATB a cappella choir, as well as Bern Herbolsheimer’s Stabat Mater, and the Northwest premiere of Tigran Mansurian’s monumental Requiem, dedicated to the memory of the victims of the 1915 Armenian genocide.