Maybe I have missed the point here but almost every Fijian I know or have met has sung "Isa Lei" as their song of farewell or greeting. It may or may not be their national anthem but if it is not it is definitely a strongly identifiable national sone. There is a version in English too and I have the lyrics to that if you require them. However, I am not sure that this is what you require. I hope this helps. - Pukuhipi