The date on the Catholic calendar commemorating the birth of St. John the Baptist, 24 June, is widely celebrated in northeastern Brazil. Festas juninas (June festivities, or St. John’s Day festivities) take place from early June to mid-July and are characterized by the presentation and representation of diverse cultural traditions of the region.
Forró, the typical music of this period, brings together diverse musical genres, dances, and a strong festive connotation. Although forró musicians born before the mid-1970s acquired their musical competence outside of formal educational institutions, large segments of the younger generation attend schools of music (though not necessary in lieu of other learning strategies). Meanwhile, changes in the organization of professional forró activities are linked to the larger transformations of northeastern festas juninas since the late 20th century.
This according to “Musicians in street festivals of northeastern Brazil: Recent changes in forró music and St. John’s Day festivities” by Carlos Sandroni, et al. (The world of music V/1  pp. 159–79).
Happy St. John’s Day! Above and below, forró as festa junina street dance.