This second volume in the collection Ugab (first mention of the organ in the Bible) presents the exceptional instrument of Lunéville. With its concealed pipes, the organ reveals its various aspects over time (from baroque to late romanticism), played by Frédéric Desenclos, founder and director of the Pierre Robert ensemble. Their references in the Apha catalogue have frequently received awards. In line with the work of Yves Rechsteiner, Frédéric Desenclos brings us a couple of unpublished transcriptions, tying in with the tradition of organ players. This surprising collection, with an extended editorial content, comes to prove than organ music is more alive than ever!