These are the “cheat” chords I played…
Pattern (a): Bb2 - F - C4 - Dm7
Pattern (b): same as Pattern (a)
Pattern (c): same as Pattern (a)
Pattern (d): Bb2 - F- C4
Part 1: Pattern (a) + (b) + (c) + (d)
Part 2: same as Part 1
Part 3: same as Part 1
Part 4: same as Part 1