A tan-tan is a cylindrical hand drum from Brazil that is used in small samba and pagode ensembles.[1] It imitates the big Surdo which is played by the famous samba baterias (percussion ensembles). But due to its smaller size the tan-tan is not as loud as a surdo and so it is played rarely in big samba schools, but rather within closer gatherings of musicians called Rodas do Chôro.
The tan-tan is played in a sitting or standing position by one hand beating the drum head whilst the other hand taps the metal or wood body of the drum.