“What, exactly, are they putting in the water at the Marlboro Music Festival?” wondered a Washington Post reviewer after a Musicians from Marlboro tour. “Not only is the virtuosity of Musicians from Marlboro consistently jaw-dropping, but the freshness, rich imagination and sheer vitality of their playing is enough to make even the most jaded concertgoer edge to the front of his seat.” This season’s first tour from “the classical world’s most coveted retreat” (New Yorker) offers a selection of wind chamber music masterpieces featuring Marina Piccinini—“the Heifetz of the Flute” (Gramophone)—and Michael Rusinek, principal clarinet of the Pittsburgh Symphony.