Written inside the famous "Golden Book" of St. Petersburg are the names of those Russians who have brought the greatest honor to the city known as the "Venice of the North." Now alongside the likes of Nabokov, Balanchine, Fabergé and Shostakovich, another name has been recently added: the Accordion Virtuosi of Russia. If you're wondering whether a squeezebox symphony is truly deserving of such a distinction, think again. For the instruments strapped around the necks of this incredible group may look like ordinary accordions, but the sound they produce is anything but expected. Winners of countless awards and veterans of the world's finest concert halls and stages, the Virtuosi now come to Wortham Theater Center's Cullen Theater for a concert including classical, pop and traditional tunes, all expertly played by the world's finest accordionists.