Black Boboi’s latest album, “Sepia,” started out as a novel. During the pandemic, the three members sent sci-fi-inspired ideas back and forth, jotting down notes in a Google Doc, an exchange that evolved into a narrative about the distant future.

“In 2024, we (began to) share sounds to accompany the story,” says Julia Shortreed, who, like everyone else in the electronic group, both sings and plays multiple instruments. “We worked on how to further shape that material into actual songs.”

Shortreed and fellow members Utena Kobayashi and Ermhoi (who goes by one name for privacy reasons) initially thought they were making a soundtrack to this novel-in-progress. “But after we let it sit for a bit … each individual song had its own story, with vocals too,” says Kobayashi.