The premise for Jazz Canvas is simple: A swingin’ jazz trio, a guest performer and a visual artist share the stage for a two-hour performance. Throughout the course of the show, the band does its thing and the artist creates a painting in response to the music being played. Both the music and the painting are immediate in nature. It is the ultimate improvisational interplay of mediums. Jazz Canvas is the brainchild of drummer Terry Marsh and artist Leigh Knowles Metteer. After presenting a few…