Main theme:
e-------------------------------------------------------------------------
b----3-0-0------1-0-0-----------3-0-0----------------3-0-0---------1-0-0--
[G-]--0-----2-0-0-------2-2-0-0-0-------2-2-0-0-----0-0------2-2-0-0-------2 x2
[D-]--------------------------------------------2-0-------------------------
[A-]------------------------------------------------------------------------
[E-]------------------------------------------------------------------------