This is really nice. When music becomes acculturated it has a creative vitality.
I think that folk music can be appreciated in different contexts. First, new elements
can be introduced to enhance it or it can remain without any adornment whatever.
Folk music really is a product of acculturation, musical blending of different forms.
There is no pure folk music as there is no pure race.

There comes a point in a musical performance when the creativity that is added to
basic folk music in the form of a tasteful arrangement (a subjective opinion of course)
enhances the performance.

There is something to be said for the simplicity (not simplistic) of folk music unadorned by an arrangement added to it as well.

When you listen to enough folk music you can distinguish between the basic form of it from the added arrangements.