It's a family affair, blood relation or not, and the family keeps growing. It started in 2005, when Sara Turk, a spirited young woman from suburban South Florida, and Alberto Conceicao (formally, Contra Mestre Betinho), a Brazilian-born master of capoeira, the deeply musical and flowing Afro-Brazilian martial arts form, met and fell in love. The couple's Boynton Beach school, now in its third year, includes their daughter, 2-year-old Sallianne, and a devoted and enthusiastic following of students of every age, male and female, with a special emphasis on youngsters. As with all martial arts, self-discipline is central to the teaching. What sets Capoeira Karkara apart is its spirit — joyful, earthy, and welcoming, like that aspect of the Brazilian national character embodied in the phrase so alegria ("only happiness") — and a vision that embraces music, acrobatics, and yoga. The school's demo team makes regular appearances throughout South Florida, at schools and community events, where its displays of power, grace, and just plain fun are infectious, a carnival of the body as art.