Gosh, while there may remain small niche avenues for very specific forms of songs and chants as mentioned above, only a tiny minority of *any* songs are actually passed on orally nowadays, and most especially those songs revivalists consider to be traditional "folk songs".

Most people hear and pick up songs through more contemporary media.
For the casual listener such media would be radio and TV, while the more dedicated listener might partake of electronic resources such as Mudcat!

This is an immense boon for those of us who would would otherwise have no access or exposure to traditional folk songs.