The Ditty throughout the song is
E|--------------------------|
B|--------------------------|
G|-1-2-4-6-7-6-4-2----------|
D|--------------------------|
A|--------------------------|
E|--------------------------|


two chords (forget the names)
(you can figure out the pattern for them)
E|----0---------------------|
B|----0---------------------|
G|----1---------------------|
D|----2---------------------|
A|----2---------------------|
E|----0---------------------|

E|--------------------------|
B|----2---------------------|
G|----2---------------------|
D|----2---------------------|
A|----0---------------------|
E|--------------------------|