Grave Concern lyrics

Grave concern is rolling over the hill,
See them grinding through the mill
Houses falling and they're falling still
Lightning striking - take cover!
All fall down
All fall down
All fall down
All fall down
Distant thunder rolling over the hill,
Watch the weather take a turn.
Shake the trees and let the leaves fall where they will
Pile them up and let'em burn.
All fall down
Etc.
[ Lyrics from: http://www.lyricsmode.com/lyrics/g/graham_nash/grave_concern.html ]