***i have a blues question***

there is a beat that i hear often in blues songs but i dunno what it is or who wrote it. its a simple beat but i want to know the original tab. i am going to put a way to figure out the beat but please leave the title or a link to find the real way to play it.

heres a way to hear it so you can help figure it out:
e|-----------------------------------------------
B|-----------------------------------------------
G|-----------------------------------------------
D|-----------------------------------------------
A|-5/7-7/5--x--5--x--5--5/7-7/5--x--5--x--5/7-7/5
E|-3/5-5/3--x--3--x--3--3/5-5/3--x--3--x--3/5-5/3

P.S. this is all typed by me and i have wondered the exact way to play this for a long time and i would like some help figuring it out.

                                                Thanks,
                                       
                                             Joby Jackson