Polyrytmisiä
Polyrytmisiä is a Finnish word that translates to "polyrhythmic" in English. It refers to the simultaneous use of two or more conflicting rhythms that are not readily perceived as deriving from one another or as simple manifestations of the same meter. In music, this means that different parts or instruments are playing at different rhythmic paces or with different subdivisions of the beat. For instance, one instrument might be playing in a 3/4 feel while another plays in a 4/4 feel simultaneously.
Polyrhythms are a common feature in various musical traditions around the world, including West African drumming,