"Collapse of stout party"...

The Punch cartoons with that phrase in the caption have long gone, and Punch is long gone - but cartoons and jokes haven't vanished from the earth, and that won't ever happen. They've changed, and they'll keep changing. And the same goes for the settings in which songs and music get performed and passed around, and the way we sing and play.

No need to break our hearts and our heads over it. People are always going to get together and share music and songs, as they always have. Not everyone, but enough to carry the songs and the music on down the ages, picking up stuff and discarding it along the way.