Afro Cuban Bass Characteristics Basslines have a strong relationship to the ‘clave’ – the fundamental rhythm of a tune. There are different claves that underscore the tunes.Groove-orientedRoots and 5ths are often enough.The bassist does not always play the root on the first beat or the point of chord change – the 5th is often used instead. Use of tumbao, which is a repeated bass figure helping to create the grooveChord changes are usually anticipated on the fourth beat of the preceding bar. Bass Patterns