Logan - a rhythmic gymnast for Great Britain before going into broadcasting - described it as an "iconic show".

Timothée Chalamet portrays Bob Dylan in James Mangold’s “A Complete Unknown,” a rhythmic biopic unpacking his rise to rock ’n’ roll stardom.

The film includes fascinating stories about the origins of some of their hits, like the sound of a car crossing a bridge that inspired the rhythmic hook of “Jive Talkin’.”

“And that was always my goal, to find a very rhythmic way to make this sort of symphony play.”

But the timing of the pulses suggested this one had a companion: The pulses arrived slightly early and late in a rhythmic pattern, indicating a source that was sometimes closer and sometimes farther away.