The lightweight romantic story is mere scaffolding for a jaw-dropping array of A-list classical artists from 1947 in performance, many of whom are only fitfully represented elsewhere on film: Artur Rubinstein, Rise Stevens, Jascha Heifetz, Walter Damrosch, Fritz Reiner, Jan Peerce, Gregor Piatigorsky, Ezio Pinza, Lily Pons, Artur Rodzinski, Bruno Walter, Leopold Stokowski, Harry James, Vaughn Monroe and the New York Philharmonic. Rare and historic.