How long are a verse, a chorus and a bridge?

Can you describe the parts of a song for me? (verse, the refrain, the chorus, the bridge, and the coda.)

• Answer:

  The verse is the part of the song that tells a story. A refrain is a line (also can be the title) that is repeated at the end of every verse. The chorus is the part of the song that often sticks to the mind of a listener because it contrasts with the verse and is repeated several times. The main theme is expressed in the chorus; the title of the song is usually included in the chorus too. Coda is an Italian word for "tail," it is the additional lines of a song which brings it to a close. The coda is an optional addition to a song. In the AABA song form, the bridge (B) is musically and lyrically different than the A sections. In this form, the bridge gives the song contrast before transitioning to the final A section, therefore it is a necessary part of the song.