In that moment, the boundary felt porous. Phone screens went dark as if unwilling to interrupt. Someone on the fringe — a skeptic who’d come for the novelty and stayed for the heat of the crowd — wiped a tear away and admitted they didn’t know why. Aria stepped to the projector and began to sing. Her voice wasn’t trying to mimic the tape; it was answering it. Electra harmonized, and the fan tuned each note with the crystalline device until sound and signal entwined in a ribbon.