Music: Radio Concert

In a formal drawing-room, softly rugged—the studio of Station WEAF, Manhattan—sat a score of notables in evening garb. In the broadcasting room stood John McCormack. In front of him was a microphone. He sang Adeste Fideles with quartet and orchestra, the Berceuse from Jocelyn. Then Miss Lucrezia Bori rendered LaPaloma, airs from La Traviata; then the two sang a duet from the same opera. Both were nervous at first, lacking the stimulant of a physical audience ; they warmed to their work, their voices were perfectly reproduced, even to the finest nuances of...