g|-7--77-77-------------7--77-77-----------|
d|------------9-7-9-7--------------9-7-9-7-|
a|-----------------------------------------|
e|-----------------------------------------|

g|-0--00-00---7---7-----0--00-00---7---7-----|
d|--------------9---9----------------9---9---|
a|-------------------------------------------|
e|-------------------------------------------| 

after the second line, repeat the first line again, etc...