 Petrus’s free usage of the divided breve had far-reaching implications for musical style.With more notes, the triplum became the most prominent of the three voices in contemporary texture, and the other two were relegated to a supporting role.Also, more notes and more intricate subdivision led to a slowing of general tempo—the semi-breve was performed more slowly than it had been in earlier practice, becoming the true unit of the beat, and the lower voices lost their rhythmic vitality, becoming mere structural successions of breves and longs.