e--------------------------------------------
b--------------------------------------------
g--------------------------------------------x4
d---8-9-10-10-10-8---------------------------
a10----------------10-10---------------------
e--------------------------------------------

e--------------------------------------------
b--------------------------------------------
g---8-9-10-10-10-8---------------------------
d10----------------10-10---------------------
a--------------------------------------------
e--------------------------------------------

e-----------------------------------------------------
b-----------------------------------------------------
g-----------------------------------------------------
d---8-9-10-10-10-8-------8-9-10-10-10-8---------------
a10----------------10-10----------------10-10---------
e-----------------------------------------------------

e------------------------------------------------------------------------
b------------------------------------------------------------------------
g------------------------------------------------------------------------
d---8-10-12-12-12-10-------12-10-10-10-----------8-9-10-10-10-8----------
a10------------------12-12-------------12-10--10----------------10-10----
e------------------------------------------------------------------------

e--------------------------------------------------------
b--------------------------------------------------------
g--------------------------------------------------------
d---10-8------------------10--10---3---10---5---3---10---
a10-------10-10-10-10-10--10--10---3---10---5---3---10---
e-------------------------8---8----1---8----3---1---8----

It's is pretty accurate I think. It works well for me.