C Em F                 G       C Em
Play something that we need to hear
F                G        C Em
Play to make the ghosts appear
F          G           C Em F G
Play until the bottles gone

That chord sequence is then repeated through the song, until:

Em             Am
Play it in the streets, Play it in the schools
F               F                      G              G           C Em F G 
Play it for the ones out there who’ve never seen what playing can do