Marcianò, 40, has spent most of his professional life outside his home country, hopping between opera houses in the Middle East and across the Caucasus. In late 2015, he settled in Yerevan, Armenia’s capital, as guest principal conductor of the state opera house. Yet even if he is based in Yerevan, Marcianò remains global in outlook and persuasion. Next month he will spend five weeks in Beirut, at the Al Bustan Festival, where he is artistic director. In March and April he will conduct at the inaugural ...