This is from their video on youtube ( http://www.youtube.com/watch?
v=K8EpfphkuuY ) Pretty simple and you don't have to tune into drop Db or whatever 
they normally do.

----------------------------------------------------------------------------
	           Just Pluckin Around A Bit - Circa Survive
----------------------------------------------------------------------------

Tabbed By : Nella
e-mail: nope.

Tuning: Standard

G|------------------------|
D|------------------------|  repeat for 8 minutes and 12 seconds
A|------------------------|
E|--8--6-8---6-8--6-8---6-|

listen for the timing.