The "stick" is a berimbau.
The berimbau (pronounced /bəˈrɪmbaʊ/) is a single-string percussion instrument, a musical bow, from Brazil. The berimbau's origins are not entirely clear, but there is not much doubt on its African origin, as no Indigenous Brazilian or European people use musical bows, and very similar instruments are played in the southern parts of Africa.[1] The berimbau was eventually incorporated into the practice of the Afro-Brazilian martial art capoeira, where it commands how the capoeiristas move in the roda.
