(GREAT BARRINGTON, Mass.) – Jazz fusion legends Spyro Gyra bring a smooth-jazz twist to the holidays with A Night Before Christmas on Sunday, December 11, 2011, at 7 p.m., at the Mahaiwe Performing Arts Center. The eight-time Grammy Award nominated outfit, founded in Buffalo, N.Y., in the mid-1970s, is one of the longest-running and most…