You maybe have seen this on the Tube of You, but in case you haven't, you're in for a treat. Here's the great Fatha' Hines, the Earl of jazz piano, demonstrating the art of syncopated piano playing as it evolved through the decades. He should know, because he played a major role in its development. The Yale-looking fellow who does the introduction is Ralph J. Gleason, esteemed critic and jazz historian (later SF rock 'n' roll champion). I never liked him much, but Hines is extraordinary. Watch, and be awed.
The show, by the way, is Gleason's "Jazz Casual," a TV program that ran on NET in the '60s. This clip probably ran in 1961 or '62, judging by Ralph's coif.