[X]
C F G C
1)--------------------------------------------5---------
2)-----5-------------5------------6-5---8-8--8--8-6---5-
3)-------7-5-----------7-5------------7-------------7---
4)--55-------5----55-------7---77-----------------------
5)------------------------------------------------------
6)------------------------------------------------------x2
1)-----------------------------------------------
2)-----------------------------------------------
3)-4-44--4-44----7-----4-5555-4444-4-22-4-2---7--
4)-------------9---5-7---------------------------
5)-----------------------------------------------
6)-----------------------------------------------
se repite todo