Song: Shock To Your System
Artist: Tegan And Sara
Album: Heartthrob
Year: 2013
Tabbed by: Maite Díaz

Standard tuning
No capo

Pretty simple chord progression: the song only has 3 chords.
I've changed the notes of the chords a bit so that it has a different ring to it when 
played acoustically.
Enjoy!!

Chords used
    F     Am    C
e --0-----0-----0--|
B --1-----1-----1--|
G --2-----0-----0--|
D --3-----2-----2--|
A --3-----0-----3--|
E --x-----x-----x--|

Intro
Am - F - C


F
You seem like you're so restless, young at heart
Am
Who gave you reason?
F
You should be out driving people wild
Am
Who gave you reason?

            F            C
You got a shock to your system
              F           C
Knocked your heart right out of sync

F
You're only meant to hurt once in a while
Am
Who gave you reason?
F
You're only meant to cry once in a while
Am
Who gave you reason?

            F             C
You got a shock to your system
        F      C
Pull yourself out of it
              F           C
I know that shock to your system
               F          C
Knocked your heart right out of sync

Am              F  C
What you are
What you are
Am              F  C
What you are
What you are

Am            F   C
What you are is lonely
Am              F  C
What you are
Am            F   C
What you are is lonely
Am              F  C
What you are


(Rest of the song: IDEM chord progression)

You must rely on love once in a while
To give you reason
You must rely on me once in a while
To give you reason

You got a shock to your system
Pull yourself out of it
I know that shock to your system
Knocked your heart right out of sync

What you are
What you are
What you are
What you are

What you are is lonely
What you are
What you are is lonely
What you are

What you are is lonely
What you are is lonely
What you are is lonely