This example centers mostly around the "BB Blues Box":

MAJOR (Box 4)

          A7            D7              A7
    ___       __    __    __    __    __        __ 
   |   |  |  |  |  |  |  |  |  |  |  |  |   |  |  |
e|----------------10-10p-9-10-12---------------------|
B|-------10vv--10----------------12b---10vv------12b-|
G|-9h-11--------------------------------------11-----|
D|---------------------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|


*:·..·:*¨¨*:·..·:*¨¨*:·..·:*¨¨*


Key E (Transposed - Original Key A):
-----

MAJOR (Box 4)

        E7     A7              E7
    __       _   _    _   _    _       _
   |  | |   | | | |  | | | |  | |   | | |
e|--------------5-5p-4-5-7-----------------|
B|------5vv---5------------7b---5vv-----7b-|
G|-4h-6-------------------------------6----|
D|-----------------------------------------|
A|-----------------------------------------|
E|-----------------------------------------|