"Troissoeur" has found a more radical answer: they sing mainly in a language that nobody understands. (I should add that I am conceitedly assuming that these languages are invented because they mean nothing to me. If they are in fact extremely obscure but real languages, I apologize. In either case, the singers are to be congratulated on their astonishing memories). …if any readers are feeling adventurous I recommend this curious recording to them. They will find it unlike anything that they have ever heard before and learn something about the unexpectedly avant garde character that roots music has acquired in present-day Flanders.”