este es el intro solo que necesita una afinacion especial
6..--2-0-0-0---3-0-0-0--4-0--5--3-------------------------------
5..--4-5x5x5x--5-6x6x6x-6-7x-7--5-------------------------------
4..--4-5x5x5x--5-6x6x6x-6-7x-7--5-------------------------------
3..-------------------------------------------------------------
2..-------------------------------------------------------------
1..-------------------------------------------------------------
y asi repiten