Some dance makes sense in big halls; some thrives in intimate environs. Flamenco is one that comes alive in the cozy, charged energy of a nightclub; hence it's perfect for Joe's Pub. And Soledad Barrio, one of the great flamenco dancers of the day, is a treat to see up close. She returns for a weeklong engagement with the vigorous dancers Juan Ogalla and Marina Elana, along with a team of excellent musicians.