(A) For each year the most popular style is identified. Its popularity is shown over the entire observation period. The first cycle is given by Vocal (music strong focus on voice), followed by rock & roll, pop rock, soul, disco, synth-pop, house, and finally experimental music.
(B) Most styles enter with a rather low popularity that they maintain over a number of years. These phases are eventually followed by a rapid increase in popularity.
Only styles are shown that were among the five most popular ones in at least one year.