For those unfamiliar with the song, the chord progression starts like this:
A minor (composed of A, C, A, C, E, C)
? (composed of A, F, A, B, Eb, B)
A minor (composed of A, C, A, C, E, C)
? (composed of A, F, A, B, Eb, B)
A minor (composed of A, C, A, C, E, C)
D minor (composed of D, A, D, F, A, F)
A minor (composed of A, C, A, C, E, C)
? (composed of A, F, A, B, Eb, B)
A minor (composed of A, C, A, C, E, C)
? (composed of A, F, A, B, Eb, B)
A minor (composed of A, C, A, C, E, C)
D Major (composed of D, A, D, F#, A, F#)
A minor (composed of A, C, A, C, E, C)
? (composed of A, F, A, B, Eb, B)
A minor (composed of A, C, A, C, E, C)
F minor (composed of Ab, F, Ab, C, F, C)
? (composed of A, D, G, B, D, B)
? (composed of A, Eb, G, A, Db, A)
? (composed of A, D, G, B, D, B)
? (composed of Eb, B, Ab, E, B, E)
A minor (composed of A, C, A, C, E, C)
? (composed of A, Eb, A, B, Eb, B)
D major (composed of D, A, F#, D, F#, D)
? (composed of E, B, Ab, B, E and Ab, B)
All of the chords (barring the simultaneous E and Ab in the last one) are arpeggiated up.
And that's to say nothing of the second part.

