(Credit: Genevieve Girling) Buxton Festival kicked off their program of operas with “Eugene Onegin,” Tchaikovsky’s work of love, passion, rejection and regret, set among the decadent leisured class of 19th century Imperial Russia, a class which was soon to meet its end at the hands of the communists in the 1917 revolution. Firmly rooted in the Romantic tradition, the opera {…}