This is a performance by two gewel – professional musicians – from the Wolof people, playing a traditional song on two Halam (Xalam, or Khalam)**.
It could almost be considered a fusion of the Arabic and the African cultures, as can much of this music from the northern area of the slave coast.
** Halam, Xalam or Khalam is the Wolof name for traditional stringed instruments from West Africa. This is is the origin of Banjo in America. We can see the short linguistic jump from “Banjar” or “Bangie” to “Banjo.”
(cf.) Call Me Xalam, Banjar, Strum Strum or Merrywang
https://blog.strazcenter.org/2016/11/15/call-me-xalam-banjar-strum-strum-or-merrywang/