Tonight, he was testing the Tuba Mirabilis stop. He pressed middle C.

Marco frowned. He opened the “Advanced” panel. The “Release Tail” algorithm was set to Neutral . He checked the disk streaming. No errors. He reset the engine.

Marco opened the project file. He looked at the raw waveform for the G# sample. There, buried in the noise floor at -120dB, was not a musical tone, but a faint, repeating pattern. A shape. Not a glitch. A face.

He played the phrase again. This time, a whisper crackled through the subwoofer—not wind noise, but a voice. Old English. A choirboy counting: “...thirty-one, thirty-two, thirty-three...”

He played a bar of Widor’s Toccata . The speakers vibrated the coffee cup on his desk. But as the last note faded, the reverb tails didn’t decay naturally. They twisted.

And business was booming.

It was the reflection of a man in a Victorian frock coat, standing in the triforium, hands clasped.