Houston Grand Opera’s British general director, Anthony Freud, introduced Houston audiences last year to Sir Nicholas Hytner’s imaginative production of Handel’s “Xerxes”, starring Susan Graham and Laura Claycomb (see “Xerxes” Unexcelled – Houston Grand Opera, May, 2, 2010). For the weekend of the Royal Wedding, in which American interest in the cultural affairs of London was heightened, [...]