TabScout.

Notice

-The original version of "Concertina" appeared on The Mars Volta's Tremulant EP, but this transcription is based on the version of "Concertina" that The Mars Volta demoed during the sessions for De-loused in the Comatorium...with Flea from RHCP on bass. You can find this version at www.thecomatorium.net

-There's a lot of weird chord grips...but once you get used to them, it sounds close to what might actually be two tracks of guitar at a time.
I'm no bassist, but these are the notes that I hear in this version of "Concertina."

Lyrics

CONCERTINA

In denial
Who will come clean all the ravenous debris
In disguise
Sideswiped by penance cerecloth sentencing
This scapegrace will pay my barking harangue
Are you listening?
On the 14th you stole what hasn't grown old

In denial
File this under a bridge that he can't leave

Will those shadows glare
From that blank-rimmed stare
In a vacancy hush

Aunque me dejaste ahogando en el mar
Aquestete in la tierra
De la realidad de tusueno
Manos me recuerdo
Solamente a ti te odio
Yo ya me voy

In denial
Who will clean up all this ravenouse debris
In denial
File this under a bridge that he can't leave

And the storyville sawbones couldn't fill
The prescription to mend
All the broken wills in the white lie ward
Don't you pretend

Tangled in thorns
To walk unborn

And this debt will collect