This song by Vanessa Carlton is in B.
These are the “cheat” chords I played…
Part 1a: E2 - F#4 - B/D# - E2 (x2)
Part 1b: E2 - F#4 - B/D# - E2 (x2)
Part 2a: E2 - B/F# - D#m7 (x3)
Part 2b: E2 - F#4
Part 3a: E2 - F#4 - B/D# - E2
Part 3b: G#m7 - F#/A# [...]
