S ome connections are cosmically fated. Justine Dorsey and Graham Epstein first met on the dating app Hinge, bonded by an affinity for the type of breezy, infectious pop music from the early aughts.

The new album from the London rapper, singer and producer is a homage to the last two decades of Black British music. By Jon Caramanica Reporting from London When it came time to share the release ...