[Tadao]

It looks and sounds too me like he is keeping his fingers in the same position on the same string except for the 3rd cord on the 6th fret. Try this.

I see it as

e X
a X
d 9
g 11
b 12
e 10

e X
a X
d 7
g 9
b 10
e 8

e X
a X
d 6
g O
b 9
e 8

e X
a X
d 7
g 9
b 10
e 8