It's only natural that, following his stint in Miles Davis' dark and mysterious electric outfit, keyboardist Chick Corea would make a smooth, sunny about-face with his first Return to Forever lineup. Brazilian singer Flora Purim and drumming hubby Airto Moreira brought a tropical tinge to Corea's influential 1972 fusion classic, propelling the samba groove of "What Game Shall We Play Today," the Mexican-flamenco verve of "Sometime Ago - La Fiesta," and the reflective pleasures of everything else, with Corea bobbing benignly overhead on electric piano.