--------------------------------------------------------|
---------------------2---2-2----------2---2-2-----------|
-------------------------------2--3-3------------2--3-3-|
-4-4-3-3-2-2-1-1----------------------------------------| (repeat) part a


----------------------------------------------------------------------|
---------------2---2-2--------------2----2-2-----------2-2------------|
------1-2-2---------------2--4-4------------2--4-4--------2-1---------|
-4-4----------------------------------------------------------------4-| (repeat) part b

-------------------------------------------------|
-------------------------------------------------|
-------------------------------------------------|
----------4-4-4-4-4-4-4-4-4-4-(4)----------------|  bridge


------------------------------------------------------------------|
---------------------------------3-3-3-3-3-3-3-3-2-2-2-2----------|
---------------------------------------------------------2-2-4-4--|
--4-4-4-4-4-4-4-4-3-3-3-3-3-3-3-3---------------------------------| part c

-------------------------------------------------|
----------------------------------------2-2-2-2--|
------------2-2-2-2-----4-4-4-4------------------|
-4-4-4-4-----------------------------------------|  part d

--------------------------------------------|
--------------------------------------------|
--------------------------------------------|
-------4-4-4-4------4-----------------------| (x4)  final

:
part a
part b
part a
part b
bridge
part c
part d
part c
final