Any music would apply

But you've been persistently talking about "folk culture" in this thread - "folk culture" that's special and needs to be nurtured - learned, not just for entertainment. So...

Learning songs installs them in the minds of people.

Instills, eh? Why, I wonder - if a song is, say, "Sympathy For The Devil" by the Stones. Is this folk music?

Entertaining with them just leaves people happy for a moment.

Really? Seeing Reverend Gary Davis in 1964 made me happy for a lifetime!