Relating to music that uses multiple different time signatures or meters simultaneously, creating complex rhythmic layering. Different instruments or voices may follow different metrical patterns that interweave to form intricate rhythmic textures.
From Greek 'poly-' meaning many and 'metron' meaning measure, referring to the use of multiple meters. The concept has ancient roots in various world music traditions but gained academic terminology in 20th-century music theory and composition.
Polymetric music is like watching multiple dancers perform different choreographies simultaneously—somehow it all fits together! Composer Charles Ives was a pioneer, layering different marching bands playing in different time signatures to capture the chaos and beauty of American life.
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