Hi Mr Tan,
Although this is from Malaysia, I thought you will find it interesting because your broad interest in politics and music.
I personally think that it is an incredible song with an incredible story. It is produced independently (meaning not linked to any political parties or the Bersih organization itself) by a lady from Johor. She was not able to make it to the Bersih rally last year because she has to take care of her paralyzed father, and to make up for it she produced this song with the help from many many volunteers.