The fact that host Timothée Chalamet just earned an Oscar nomination for his role as Bob Dylan in “A Complete Unknown” raised the possibility, however slim, that Minnesota’s most celebrated artist might appear on the late-night show for only the second time in its 50-year history.

The Bob Dylan song choices Timothée Chalamet picked for his “Saturday Night Live” musical appearance were… well, completely unknown to most of the viewing audience. The actor’s dip into more obscure choices delighted many Dylanologists who tuned in,