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The piano melody of this song goes: 
 
CHORD MELODY AFTER CHORD (Just the notes) 
 
(C) (G) (C) (D) (E) 
(Bm) (F#) (B) (C#) (D) 
(G) (E) (G) (A) (B) 
(Em) (B) (E) (F#) (G) 
(D) (A) (D) (E) (F#) 
(C) (G) (C) (D) (E) 
 
Every chord is followed by its 5th in the lower octave, 
then the key itself, the 2nd and 3rd (or 3rd minor), 
which are all shown above