base:
e|--------------------------------
B|--------------------------------
G|----------------(b9)(b9)------------
D|-(b9)(b9)(b9)(b9)-7-7---(b9)(b9)------------
A|-(b9)(b9)(b9)(b9)-7-7---7-7-------------
E|-7-7-7-7--5-5-------------------


 Refr?o:

e|---------------------------------
B|---------------------------------
G|---------------------------------
D|---------------------------------
A|---------------------------------
E|-2--0--2--0--2-------------------