Could it get to the point where each song in a concert is followed by a long list of credits?

We all nick from each other down here in the lower reaches of the folk food chain.

I agree with shepherdlass.
If someone is interested they'll ask. Meanwhile, I don't think anyone is intentionally stealing credit. We're thankful that others further up have drawn our attention to the song. We do our best to make them our own, but we're not all that clever.