The Gnawa are an ethnic minority inhabiting southern Morocco, this group had been brought to Morocco as slaves from West Africa’s Sahel, but were eventually established as a Moroccan ethnic and religious group with ties to the Amazigh people. They are most famous for their music, Hausa traditional music, involves call-and-response singing, hand-clapping, and cymbals called krakeb. Their music is said to invoke ancestral saints to perform healing rituals. Centers for this music are in major Moroccan cities, including Fez, Marakesh, Tangier, Casablanca, and many others.