OK, I've read up on the terms but lets take an example, Heartbreaker by LZ. What do you call the riff that starts it and then is played in between each verse? I'm think maybe Codette but since it's not really a tail but the hook of the song, is it really a chorus? The one I'm trying to chart is sort of blues tune called Make Your Move by Third Day. It has a Peter Gunn sort of opening and then they do the Peter Gunn riff in between verses and in the middle of the chorus for effect. What do you call the riff?