This tape was posted on the blog Awesome Tapes from Africa - "This is Berber music from the Souss region of southern Morocco, which sounds like it was recorded at a festival or event (I think I outdoor ambiance plus background chatter... an awesome spontaneous vibe to this recording)."

Ahwash is a " folkloric style of music and associated dance from southern Morocco." 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.
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Artist biography from last.fm