Originally Posted by Shine
My question is: do songs need to have a bridge?
The answer is ‘no’, and if you don’t believe me ask John Fogerty grin

I think Joe is closest to how I would define a bridge. Lyrically and musically a bridge will be just that ‘a bridge’ from one bit of the song to another. The lyrical part will normally offer a slightly different angle of the story or situation; maybe a new character appears, or it maybe there’s a passage of time. It will often have a different rhyme scheme or meter. Music also has its part.

Originally Posted by Shine
Can a bridge be 4 or 6 lines long?
There is no set number of lines or bars, just whatever is right for the song.