Originally a Spanish dance in 3/4 time, it was changed in Cuba initially into 2/4 time, then eventually into 4/4 time. It is now present as a very slow and sensual type of Rumba rhythm. The music is frequently arranged with Spanish vocals and a subtle percussion effect. The Bolero rhythm is Slow-Quick-Quick requiring one measure of music and is characterized by the dramatic extension and lift of the body on the slow preparatory step of each figure.