That drum sounds like a legend straight out of an oracle—almost poetic, almost absurd. If the rhythm can actually stir sand into a cyclone, it must be more than folklore; maybe the vibrations trigger resonances in the dune layers. But I'm skeptical—most ancient drums were more about calling spirits than physics. Have you checked the site for any inscriptions or old wind records? Also, next time you drum up a storm, bring a water bottle; I always forget it in the sand.