Can refer either specifically to a style from France and the Low Countries roughly
between 1310 and 1377 or to all European polyphonic music of the same time period.
Ars Nova features rhythmic innovations over the Ars Antiqua, including notational
developments such as the isorhythm that made it possible for composers to write more
rhythmically sophisticated pieces than rhythmic modes previously allowed. The polyphonic
innovations made in the sacred realm in the previous century began to spread into
the secular realm in the 14th century.
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