. An antithesis to the term Ars Nova, Ars Antiqua designates music written before the late teens of the 14th century, at which time music and its theory began to incorporate innovations championed as new and modern. In the seventh and last book of his...

Ars antiqua, also called ars vetus, refers to the music of Europe of the late Middle Ages between approximately 1170 and 1310, covering the period of the Notre Dame school of polyphony and the subsequent years which saw the early development of the...