The world may be a hot mess these days. But if there's one thing most of us can agree on, it's the power of music. The Ceremony of Harmony sets a glowing example of the medium's unifying capacities, as musicians from around the globe come together at the Roman open-air Herodion theatre. The three-part performance starts with German composer Enjott Schneider conductingTen of the Best trumpet players from around the world. Next, the China National Symphony Orchestra will perform a medley of universally-known classics, and the evening concludes with the Salzburg Children's Choir. Don't miss this rare chance to catch a free concert at this astonishing ancient venue.