2 acessos
E|--------3-----------3-----------------------------------------------| B|------3---3-------3---3-------3-----------1-----------------------1-| G|----3-------3---3-------3---3-------3---2-------2-----2-----3---2---| D|--5-----------5-----------5-------5---3-------3-----3-----5---3-----| A|--------------------------------6-----------5-----5-----6-----------| E|--------------------------------------------------------------------| (repeat from beginning)