Susan Davenny Wyner's final concert as music director of the New England String Ensemble was like many that had preceded it over the last six years: wonderful music, new and old, familiar and not, programmed in an invigorating way, skillfully performed, and conducted with passionate intelligence and radiant emotion.
This last program had the in-the-moment quality of the group's best work while featuring pieces that look both forward and back. The ensemble presented the world premiere of a profoundly beautiful work by the Israeli composer Betty Olivero, ''Achot Ketana" (''In Memoriam"). A mezzo-soprano intones a Hebrew prayer from 13th-century Spain to music based on the opening harmonies and gestures of Bach's ''Chaconne" for solo violin.