(Photo: Daniel Dittus) What new ideas can a Christmas concert possibly still have up its sleeve? “Pastorale,” conceived and led by Dorothee Oberlinger with Ensemble 1700, offered a compelling answer by returning Christmas music to its human roots. Rather than polishing familiar repertory into decorative ritual, the concert reframed it—through sound, story, and historical memory—into a richly textured, deeply humane {…}