When Leopold of Anhalt-Cothen died in 1728, his former Kapellmeister had not forgotten the five brilliant years he had spent in the prince's service. He dedicated to his memory a mourning cantata almost entirely based on the music of two major works of the mid-1720s, the Trauer-Ode and the St Matthew Passion. Although the score is lost, the wordbook and other sources of information have now made it possible to reconstruct the work. Raphael Pichon's first recording for harmonia mundi was voted recording of the year at the 2015 Victoires de la Musique Classique awards.