The em7 has the 3rd fret of the high E string as does the G, please remember this else 
it won't sound right!

 Bm         A  D  Em7
One moment to another
   G       A6    A  Bm
A world to be discovered
 Bm          A  D       Em7
And now it's my turn to fly
Em7              G       Em7 A
Let this be the last time I say goodbye

Then the rest of the song goes the same, when he sings 'Say goodbye' with the A hammer 
on to the 4th fret with the B string.