Mary, try looking at the name of the tune and see if that gives you any ideas. (If you saved it from earlier, click again - I changed the name.) As for further hints, you'd better PM me because I think I may be making a pain of myself. (And I don't want you to flame me publicly when you figure it out. ;-) There are two hints in my last message.

I think the tune is in Mixolydian mode. It's actually hexatonic. Thing is, it sounds an awful lot like Asian pentatonic music, and I wonder if the pentatonic scale we're discussing is in Myxolodian and just leaves out certain notes. I think this may explain why some western music sounds like some Asian music. (Please note, I don't know much about theory, and I'm posting very simplistic opinion based on the way the music sounds to me.)