Lyric discussion by life0and0death 

what about 'bloody sunday' in salma, alabama? couldn't it be about that? and when that happened, the blacks (and some whites(NOT TO BE RACIST)) were singing songs of freedom... 'how long must we sing this song' get it?

or what if it's about all of the 'bloody sunday's' that ever happened?

but that's just my opinion.

An error occured.