This is a standard 1-4-5 Blues walk, usually done by a bass, but its good to know as a guitar player, 
I chose the Key of A,but it can be easily transposed by changing your root note.

e------------------------------------------------------------------------------------------------------
b------------------------------------------------------------------------------------------------------
g------------------------4-5-4-----------------------------6-7-6----------4-5-4------------------------
d--------4-5-4--------4-7------7-4-------4-5-4---------6-9------9-6---4-7-------7-4-------4-5-4--------
a----4-7------7-4---5----------------4-7-------7-4---7--------------5-----------------4-7------7-4-----
E--5-------------------------------5------------------------------------------------5------------------

Also If you wanted to do it in D...but not start on the 10th fret

e-------------------------------------------------------------------------------------------------------
b-------------------------5-6-5----------------------------7-8-7-----------5-6-5------------------------
g--------4-5-4--------4-7-------4-7-------4-5-4--------6-9-------9-6---4-7-------7-4-------4-5----------
d----4-7-------7-4--5-----------------4-7-------7-4--7---------------5-----------------4-7-----7-4------
a--5--------------------------------5------------------------------------------------5------------------
E-------------------------------------------------------------------------------------------------------

easy have fun