From Simple English Wikipedia, the free encyclopedia

Polyrhythm happens when two different rhythms are played at the same time in music. African, Latin, and Afro-Cuban music often use polyrhythms. Polyrythm is another word for layering and adding volumes to the piece of music. It happens when one person starts playing a rhythm and then other people start joining in, adding dynamics to it. It happens in Africa during festivals and occasions along with a call and response style of playing.