Potholes

E|--8----12---12---7--------------7------------------------| 
B|----------------------12---12-------12-------------------| 
G|---------------------------------------------7----12-----| 
D|--7--------------5--------------5------------0-----------| 
A|---------------------------------------------------------| 
E|---------------------------------------------------------| 
          t    t         t    t        t             t       

E|--8----12---12---7--------------8------------8----10-----| 
B|----------------------12---12-------12-------------------| 
G|---------------------------------------------------------| 
D|--7--------------5--------------5------------5-----------| 
A|---------------------------------------------------------| 
E|---------------------------------------------------------| 
          t    t         t    t        t             t