Au pairs from Westport, Weston, Wilton, Norwalk, Ridgefield, Greenwich and New Canaan gathered together at Levitt Pavilion in Westport Thursday July 19th to learn a Brazilian dance and  listen to the music of Quarteto Olinda Riverswing.  Forro music originated in the northeast province of Brazil.  The music is lively, accordion driven and danceable music for all people.  A good time was had by all.