The song itself (rendered by a singer in the video on the page) reminds of a lot of non-western music, in particular the distinctive minor harmonic 7th that is

The song itself (rendered by a singer in the video on the page) reminds of a lot of non-western music, in particular the distinctive minor harmonic 7th that is so common from southern and Eastern Europe through the Middle East to South Asia. I've also heard Jewish cantors in synagogues using it. Someone once described this very general style of modal music to me as "Alexandrian" music, because variations on it appear in many places where Alexander the Great's army went. Of course, the musical style probably far predates Alexander, as Alexander was himself following routes established long before his time.