I tried the link you posted just above, David, and perhaps I don't know where to look, but I saw nothing there about folk music at all. Can you "fine tune" what it is you're talking about?

In their most recent competitive season, Tanith Belbin and her partner Ben Agosto (and note, they are ice dancers, not free skaters) they selected the following music:

Compulsory Dance: Austrian Waltz
Argentine Tango

Original Dance: Appalachian Hoedown/Bluegrass mix*

Free Dance: Chopin custom mix by Joseph LoDuca

Exhibitions: Latin mix/Let's Get Loud by Jennifer Lopez
Justin Timberlake's SexyBack/My Love mix by JT Horenstein

*note that this is related to American (United States) folk music. Tanith Belbin was born in Canada. In Kingston, Ontario, to be precise.

I believe this was their selection, not specified in the rules. If I am wrong about this, then please indicate where this is stated in the International Skating Union, World Skating Federation, and/or United States Figure Skating Association rules.

Don Firth