This song by Paul McCartney is in C and D.
There are 2 progressions that repeat themselves throughout the song. I call these Part 1 and Part 2 in the video.
These are the “cheat” chords I played…
Part 1a: Bb - F/A - C - G
Part 1b: Bb - F/A - C
Part 1c: Bb - F/A - [...]
