Section 4 of 5 · runs ≈185 down to ≈115 BPM
Harlem, the Savoy, Kansas City, and the revival that followed.
● every piece in this section, placed at the tempo it lives at — hit a dot to jump

The Harlem ballroom where Lindy Hop was developed, the scale of the room, the resident bands, and the dancers who made it the reference floor. Handled as load-bearing history with credit, not as nostalgia.

The Black American community in Harlem that created Lindy Hop, the social conditions the dance grew in, and why crediting that origin accurately matters more than any style debate.

How the Kansas City bands built a rhythmic language out of riffs and blues form, and what that did to the floors that danced to it.

Touring circuits, ballroom capacity, radio broadcast and the record business — the commercial machinery that made a dance craze possible and then withdrew it.

The late-century revival that brought these dances back, what it recovered accurately, and where it substituted costume and pastiche for the original musical relationship.