Bruno - You have a fashion text... I am bruno

We also switched to secular genres - conduct, motet and prepared the transition to ars nova. The most prominent theorists of A. - Johannes de Garlandia (13th century), Franco Paris and Franco Cologne, author of the treatise “Ars cantus mensurabilis”, in which, based on the outlined by Garlandia and others, researchers developed principles of menstrual notation (13th c. ), Johannes de Groheo (13-14 cc. ). gradually departed from the modal rhythm. Perotin's upper voices sometimes form a contrasting two-voice, sometimes he skillfully applies imitation.