A talented Black musician from the 1920s with synesthesia, which enhances her musical abilities. Her relationship with Delaney is complex, marked by both her reverence and experiences of exploitation.

An ambitious white musician from Indiana who rises to fame as a composer. His identity and reputation are pivotal to the novel's unfolding mystery.

A computer expert and friend of Bern from Columbia, known for her intelligence and supportive nature. She teams up with Bern to uncover the truth behind Delaney's legacy.

A descendant of Frederick Delaney who initially supports the preservation of his reputation. Her interactions with Bern bring pivotal changes to her stance.

A descendant of Frederick Delaney and an antagonistic character, whose actions against Bern and Eboni reflect his resistance to change and darker motivations.

Josephine's cousin who provides Bern and Eboni with crucial insights into her past. She maintains a connection to Josephine's legacy through her family.

Owner of a music publishing house where Delaney first gains recognition. His interactions with Josephine and Delaney impact the trajectory of their musical careers.

A composer at Ditmars & Ross involved in the music publishing scene of the time. His perceptions of Josephine influence a pivotal turn of events.

The receptionist at Ditmars & Ross, noted for her supportive and relatively open-minded attitude during interactions with Josephine.