intro = E|--------------------------------------------------------------------| B|--------------------------------------------------------------------| G|---------7-7-7-7-----------7-7-7-7---------7-7-7-7------------------| D|-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-5-5-5-5-7-7-7-7-7-7-7-7-7-5-5-6--| A|-7-7-7-7-5-5-5-5-7-7-7-7-7-5-5-5-5-5-5-5-5-5-5-5-5-7-7-7-7-7-5-5-6--| E|-5-5-5-5---------5-5-5-5-5---------3-3-3-3---------5-5-5-5-5-3-3-4--| E|------------------------------------------------------------------------| B|------------------------------------------------------------------------| G|---------7-7-7-7-----------7-7-7-7---------7-7-7-7----------------------| D|-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-5-5-5-5-7-7-7-7-7-7-7-7-7-7-7-7-7-7--| A|-7-7-7-7-5-5-5-5-7-7-7-7-7-5-5-5-5-5-5-5-5-5-5-5-5-7-7-7-7-7-7-7-7-7-7--| E|-5-5-5-5---------5-5-5-5-5---------3-3-3-3---------5-5-5-5-5-5-5-5-5-5--|