Sound of Imagination
Broken Lamp
A residual that still throws a wrong light.
Still

The room the tone keeps
A lamp that failed and kept glowing anyway. Not a haunt. A fixture that does not know the hour is over.
What the frequency does
A short wrong light. Not a crash. The fixture keeps a frequency after the bulb has already failed — residual glare more than note.
After the last bar
When a file is filed the last bar should click off and leave the afterimage. Until then: Unfiled Signals.