What is a Bolero?

It’s a Spanish dance and song in moderate tempo and triple metre that was popular at the end of the 18th and throughout the 19th century. Its rhythms are closely related to the polonaise, a Polish slow dance. The Cuban Bolero, which superseded the Spanish version in Latin America, is in double time. Beethoven wrote the ‘Bolero a solo WoO 158’. Later examples in classical music include those by Berlioz, Chopin and Ravel.