#polyphony

• Adam de la Halle — A medieval French poet, composer, trouvère, and playwright of the 13th century, considered one of the founders of secular theater in France; author of the famous musical play 'The Play of Robin and Marion' (Le Jeu de Robin et de Marion). This structural figure in art history excelled in early polyphonic composition and monophony, laying the foundations of medieval comic opera by merging spoken dialogue with lyrical musical sections.
• Arcadelt — A proper onomastic name of Franco-Flemish origin, globally recognized in classical musicology through the composer Jacques Arcadelt (c. 1507–1568). He was a renowned Renaissance master, famous for early developments of the secular Italian madrigal and sacred polyphonic music, deeply influencing the evolution of 16th-century European compositional styles.
• Augmentation — A neologistic term used in plastic and reconstructive surgery to designate the operation of increasing the volume or remodeling an anatomical region using implants or fat grafting. In classical music theory, it represents the compositional technique of proportionally increasing note durations.