For her new recording, entitled Or (light), Franco-American cellist Sonia Wieder-Atherton presents arrangements of works by Couperin and Vivaldi. The album begins with the first and third of Couperin’s Leçons de ténèbres — the Lamentations of Jeremiah, originally scored for soprano and continuo. Wieder-Atherton says, “I had long been looking for an instrument that could accompany my cello in the …