To be honest, I think that the right progression is " A -D -C- D"

                 A- D -C- D

Bridge:          E  - G  - A

Middle eight:    D         A

                 D - D7 - Am - B7

                 E   D  A

Reprise :        A -D -C -D"

                 etc.

Paul plays it like that ( until he keeps the pitch for A !! )



Riccardo