“
Unlike Roberta, which is Kern's creation all the way, Swing Time is Astaire's turf. Fred had uniquely mastered the art of swinging tastefully, without entirely tipping into the down and dirty. He could be hot and cool at the same time. So if Kern was ever going to get hot himself, clearly this was the man to do it with.
”
”
Wilfrid Sheed (The House That George Built: With a Little Help from Irving, Cole, and a Crew of About Fifty)