bolero (bəlârˈō) [key], national dance of Spain, introduced c.1780 by Sebastian Zerezo, or Cerezo. Of Moroccan origin, it resembles the fandango. It is in 2–4 or 3–4 time for solo or duo dancing and is performed to the accompaniment of castanets, guitar, and the voices of the dancers. Ravel's Bolero is in this rhythm.
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