When there are brackets around a word or around a whole sentence it means that both Billie and Mike are singing it, if there are no brackets it means that just Billie is singing. Any words with mean that it is just mike and tre singing it with no Billie Joe singing it. Say, Hey Hear the sound of the falling rain Coming down like an Armageddon flame And Bleed, the company lost the war today There's a drum pounding out of time Another protestor has crossed the line A gag, A plastic (guitartabs.cc)