Under the patronage of British Ambassador Kim Darroch, the Washington Chorus hosted its annual Chorus Ball fundraiser at the Washington National Cathedral May 2. The event honored outgoing music director Julian Wachner, hailed as a “visionary” and “musical genius.” A concert curated by composer Paola Prestini featured performances by cellist Matt Haimovitz, folk musician Claudio Prima, mezzo-soprano Katherine Pracht and singers from the Washington Chorus. Atmosphere Lighting provided a stunning lighting treatment evoking the cosmos as guests dined and danced in the nave, transformed into a medieval banquet hall.