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). Ahwach music blows me away and I think this tape is particularly insane. Listen to the bone crushing drum rhythm that follows the eerie solo vocal introduction. Side B completely loses its shit around 12 minutes in.
But could someone please help us with the band/album name for this one?