Manchester Orchestra - Simple Math tab

Here is essentially the beginning of Simple Math, I couldn't figure out the harmony that 
the other guitarist plays though

[ Tab from: http://www.guitaretab.com/m/manchester-orchestra/274296.html ]
d#|---------------------------------------------------------------------------|
A#|--------------------------------------7--5--7--5---------------------------|
F#|----------7--9--11--9--7--9---12-------------------------------------------|
C#|---7--9--------------------------------------------------------------------|
G#|---------------------------------------------------------------------------|
D#|---------------------------------------------------------------------------|