Leo dug into the city’s soul. He recorded honking riverboat horns at the Gateway Arch, the slam of a streetcar on Delmar Boulevard, and a gospel choir’s improvisation in a crumbling St. Louis church. But the track faltered. Each layer fought the next, drowning in complexity. Days turned to weeks. On a humid evening, Leo almost gave up, until he spotted a mural on Cherokee Street—a collage of old and new St. Louis, painted by a local artist named Cee who often collaborated with the Toyz.