hemiolas

/ˌhɛmiˈoʊləs/
noun
  1. A rhythmic pattern in music where two beats are played in the time of three, or three in the time of two, creating a temporary shift in the meter.
    • The composer used a hemiola to make the waltz feel like it had a sudden change in rhythm.
    • In the jazz piece, the drummer played a hemiola that confused the dancers for a moment.
    • The choir practiced the hemiola carefully to keep the beat steady during the tricky section.
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