In a marvelously diverse program that connects Beethoven, Bernstein, the Beatles, and contemporary works by Libby Larsen, David Lang, and Gabriel Kahane, the stellar men’s vocal ensemble Cantus sings of the challenges of connecting in our modern age. Beloved for its sumptuous tone and exquisite blend, the choir charmed the Cal Performances audience at its spectacular performance in the 2014/15 season, commemorating the Christmas Truce of 1914. “For sheer vocal finesse and sophistication, the men of the Cantus vocal ensemble are nearly unrivaled” (Star Tribune, Minneapolis).