Tumbao

In music of Afro-Cuban origin, tumbao is the basic rhythm played on the bass. In North America, the basic conga drum pattern used in popular music is also called tumbao. In the contemporary form of Cuban popular dance music known as timba, piano guajeos are known as tumbaos.
The tresillo pattern is the rhythmic basis of the ostinato bass tumbao in Cuban son-based musics, such as son montuno, mambo, salsa, and Latin jazz.
Often the last note of the measure... meer