Here is the sequence of chords used.
The song is in the key of B.
You can think of the chords, as always going back to E major. Its sort of the middle chord of the song.
Dear April…
F# -> E
B -> E
F# -> E
If you could take…
G#m -> E
B -> E
Like you took these strangers…
B -> E
F# -> E
Woke us up…
F# -> E
I believe that no matter what…
B -> E
F# -> E
F# -> E
F# -> E
If you can take two strangers…
B -> E
F# -> E
G#m -> E
And made us new…
D#m -> D#m (This chord is played twice in a row)
G#m -> D#m -> E
D#m -> E
G#m -> D#m -> E
D#m -> E
G#m -> D#m -> E
D#m -> E
G#m -> D#m -> E
D#m -> E
G#m -> D#m -> E
D#m -> E
G#m -> D#m -> E
D#m -> E
G#m… (The song cuts short)
If you just play these chords in this order you got it! (you may have to play some different inversions to make it sound better though)