1) Cuban music 
Section of an Afro-Cuban dance tune using call and response between improvisations by the lead singer and repeated phrases by a vocal chorus.
Repeated rhythmic cycle of notes or chords played on the piano that underpins modern salsa and timba. Compare this with the term guajeo.
A term of Latin music which crops up in other Jazz. (1) An indefinitely repeated pattern of 1, 2 or 4 bars in the piano, typically with ingeniously syncopated moving inner voices and a differently syncopated bass line. (2) Incorrectly, a pyramiding vamp in which one instrument enters alone, then another is added, and so on at regular intervals.