A samba band normally consists of Tamborims, Snare drums (Caixa), Agogo bells, Surdos, Ganzás / Chocalho (shakers), Cuíca, Timbal, Pandeiro, and the Repinique.
The band leader often carries a Repinique, as well as using Apitos (whistles) to signal breaks and calls.
As a general rule in Brazil, a samba band must have a group of a minimum of 8 singers with one lead singer to provide the vocal harmony needed to sing the samba-enredo and other forms of samba music.
More expensive sets come with more drums enabling more players to join; a convenience due to how many would usually take place in the orchestra.
In other countries they now play reggae, funk, hip hop and Brazilian folk music.