Contra dancing is done in long lines. You dance with your partner and one other couple. After each iteration of the dance or 64 beats of music, you and your partner move on to meet another couple and repeat the dance with them. In that way you dance with your partner and other couples in the line. Because the dance repeats, the caller eventually stops calling the dance so the dancers can listen and enjoy the music without the voice of the caller. The enjoyment is in the trace of the dance, not the complexity. There is a great deal of swinging in each dance, anywhere from 8 beats to 32 beats out of 64 beats of music.