Led by arranger and founder Charlie Rosen, the 8-Bit Big Band has rekindled a love of swing with fans of game music. Following a sold-out show in New York City, the band has invited high-energy sax virtuoso Grace Kelly to join them for two concerts in Boston on March 1 . As Charlie told me, he has so much admiration for classic themes from Super Mario Brothers, The Legend of Zelda and Final Fantasy that he thinks of them as The Great Game Songbook. Charlie says his love of Broadway provides the