I am referring to modern songs.. (not the real traditional music of days of yore).. which people think they must be traditional cause their parents once sang it, but which only date back to Chuck Berry or the Beatles days, sometimes the 1970's. People have wonky memories and because a song is well known it often gets thought of as being there forever, like Flower of Scotland, Fields Of Athenry, Massacre of Glencoe, 40 shades of green and many other songs of that period. Those are the famous ones, but there are equally less famous equivalents, but which come from modern copyright period creation. There are different aspects, traditional in style, and traditional from a copyright perspective - and in tape recording singers there may be a conflict in the copyright aspect as song copyright is 70 years after the life of the originator's demise, and only becomes traditional/public domain after that point (unless truly anonymous like football chants, or children's play songs). Also people have wonky memories and create false narratives around folk style song.   I am not talking about the classic collecting period of days gone by.. when copyright was not so much of an issue with songs that were genuinely old and sung by families, but the collecting of songs that are modern period copyright works and their inclusion in databases with the assumption that they are traditional, through being around a generation or two.