Intro:

e|---------------------------------|
b|---------------------------------|
g|---------------------------------|
d|---------------------------------|
a|---3-1-------1-------1-3---3-3---|
e|-1-----4---4---3---4-----------4-|

repeat until

e|-----------------|-----------------|
b|-----------------|-----------------|
g|-----------------|-----------------|
d|-----------------|-----------------|
a|-----------------|-----------------|
e|-1-1-1-1-1-2-2-1-|-1-1-1-1-1-3-3-2-|