Isotropic Hum

[Verse 1]
The kettle's whine is a half-tone flat at your new place.
It's been five Octobers since I've seen your face.
Every floorboard in here groans under the load;
a different pressure, a different highway code.
I map the world in acoustics and resonance,
but your silence has its own specific cadence.

[Chorus]
YOU'RE THE ISOTROPIC HUM
A STEADY STATE WHEN THE GIRDERS COME UNDONE.
YOU'RE THE ISOTROPIC HUM
THE ONLY SIGNAL WHEN THE REST IS NUMB.

[Verse 2]
You said, "You treat my heart like a problem in ballistics,"
tracing the salt-scour on the window with your lipstick.
But I'm just checking for fractures, reading the grain.
The waterline's rising in the pissing rain.

[Chorus]
YOU'RE THE ISOTROPIC HUM
A STEADY STATE WHEN THE GIRDERS COME UNDONE.
YOU'RE THE ISOTROPIC HUM
THE ONLY SIGNAL WHEN THE REST IS NUMB.

[Bridge]
I've built things to break, I know the sound of the shear.
But the silence between us is the one thing I fear.

[Outro]
Just the hum.
The only hum.