On a berimbau, the gourd is used as a resonator of the string's vibration, when struck by the stick.

There are two holes on the upper part of the gourd to slip a piece of twine into it and use it to fix it to the lower part of the bow.
The higher the gourd is positioned on the bow, the higher-pitched the berimbau is tuned.

Still, the gourd has to remain on the lower half of the bow.
In order to produce bass sounds, the player should use a large gourd, its size being proportional to the height of the desired sound range.

These models from Contemporãnea are professional quality gourds.
NB: gourds are by definition all different in size and colour. please contact us for more details and stock availability.