Instructor Nataliya Saborio draws upon her award-winning competitive dance career in Ukraine to lead a schedule of 60-minute belly-dance sessions stratified into three difficulty levels. Dancers need no prior experience to pick up modalities such as current class topic Egyptian pop beledi. The Middle Eastern cocktail of classic belly-dance movements, isolations, and shimmies syncs to beledi beats as energizing and addicting as a caffeinated Twinkie. On March 12, the curriculum will shift to focus on folkloric dances from locales such as Tunisia and Morocco that together constitute the foundation of belly dance. By studying the various incarnations of the sinuous, abdomen-centered art form, students will slim their figures, build flexibility, and boost their ability to crack walnuts with their abs.