Barry performs Couperin’s Leçons des ténèbres for the Episcopal tenebrae service at Christ Church Cathedral. She will perform with Chloe Boelter, Joanna Blendulf, and Christopher Caruso-Lynch.

Couperin's Leçons de ténèbres use the Latin text of the Old Testament Book of Lamentations, in which Jeremiah deplores the destruction of Jerusalem by the Babylonians.

Those by Couperin are for two high vocalists and basso continuo. They are composed of three lessons (two other sets of three for Thursday and Friday having been lost). Each Latin verse is preceded by a melisma on the first letter of the Hebrew text. The first two were composed for one single voice, while the third was written for two voices. This last Leçon, where the two voices perform superb appoggiatura, ornaments, dissonances and vocalizing, is considered one of the undisputed peaks of Baroque vocal music.