Celtic music has formed a popular niche in the growing world music market. With origins in the traditional and folk music of Ireland, Scotland,Wales, Brittany, Galicia and other parts of the Celtic fringe of Europe, it is a hybrid, permeable and commoditised musical category, borrowing from and contributing to mainstream rock and pop music forms. It is increasingly featured in festivals of folk and world music in Europe and North America. Yet relatively little is known about the strategies employed by festival organisers for selecting and presenting different types of Celtic music in such events, or about local public attitudes towards the music and the festivals.