Triptych links two distinct scores: Francois Couperin’s “Troisième Leçons Tenèbres à Deux Voix,” from the deeply religious Baroque period, and an original score by longtime CLD collaborator Scott Killian. A reverent, intertwining entrance for the female chorus, seeped in the religious ecstasy evoked by Couperin’s composition, prefaces each section of the work. Through abstraction, Lavagnino’s choreography references several Christian icons; the distinct qualities of each dancer embody the individual nature of spiritual expression.