This song by Sam Smith is in C.
The chords in brackets are transitional.
These are the “cheat” chords I played…
Part 1a: Am7 - F2 - C
Part 1b: same as Part 1a
Part 1c: same as Part 1a
Part 1d: same as Part 1a
Part 2a: same as Part 1a
Part 2b: Am7 - F2 - C - G4
Part 2c: Am7 [...]



