Hi Bevan,
yes, I too thought that "Ballroom styles" would have been more appropriate. Maybe they were programmed by italian musicians and the term "Folk" refers to the fact that these are the styles judged more suitable to make people dance (at least here in Italy).
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Korg Kronos 61 and PA3X-Pro76, Roland G-70, BK7-m and Integra 7, Casio PX-5S, Fender Stratocaster with Fralin pickups, Fender Stratocaster with Kinman pickups, vintage Gibson SG standard.