e -7---7777-8--8888-10-10101010-8--8888---
b ---8-8888--8-8888--8--8-8-8-8--8-8888--- X2
E -7-7-8-8-7-7-8-8-7-7-8-8-7-7-8-8-
B -8-8-8-8-8-8-8-8-8-8-8-8-8-8-8-8- X4
E -8888--77------
B -8888--88------ X8
PM.........................
G5 C5 D5
Nos hemos dado cuenta que
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