Wikipedia
Ahwash
Ahouach (a.k.a. Ahwach, Ahwash) refers to a folkloric style of music and associated dance from southern Morocco. an Ahwach session is held by a number of performers (sometimes more than 20 performers) from both men and women (in some regions; only men) playing on the rhythms of drums while chanting, Ahwach is famous in the Amazigh (berber) regions of Morocco, especially, the region of Ouarzazate, Zagoura, Souss.
The root h-w-sh means "dance", but the term ahwash encompasses 1) general idea of (musical) performance 2) An evening of song and dance 3) a single piece and 4) the dance section of a single piece.