There Is No Song in That World

In this world, there is no "Lonely Warrior", no "Late", and no song that we thought would exist forever. What people listen to is "emotional background sound" generated by algorithms - safe, efficient and soulless. A music graduate who couldn't afford the rent traveled through time and his mind was filled with the most classic songs on earth. He hummed a song in a shabby tavern, and a girl in the audience broke down and cried. "Healing protocol activated." Each song heals someone. The system recorded their words: "After listening to this song, I threw away the sleeping pills." But the system didn't say that - every time he was healed, his own emotions were being overdrawn. The previous user has gone crazy.