tuning:low g,d,a,e g------------7----------8---------------9h8p7---------7-77-7-7-| d-0-00-00-0-----0-00-00----0-1-1-0-00-0-------0-00-0-0---------| a--------------------------------------------------------------| e--------------------------------------------------------------| g-------------------------------------------------| d--------------------4htrb1---x-------------------| a--0-21-2-00-2-0-21------------0-0-0-0-1-1-01-2-0-| e-------------------------------------------------| g---------------------------| d---------------------------| a---------------------------| e0-0-0t-0-t0-tt-t0t-xx0--0t-| g--------------------------------------------------| d--------------------------------------------------| a--------------------------------------------------| e-22-33-44-55-66-77-88-99\99t88t77t66t55t44t33t22t-|