I spent some time living in west Africa (Gabon) and got a harp made from antelope skin and wood. There's a head carved into the top of the body of the harp and the player is supposed to put his/her ear to the head's ear while playing. The gut strings are tuned to a scale missing "do". I just mess around on it for fun but I'm thinking someone in Mudcat can tell me why the tuning is missing "do" - is this a special kind of tuning? There are eight strings tuned to re, mi, fa, so, la, ti, re, mi. Any ideas?