An exploration of Mozarts strong ties to Freemasonry and how its principles profoundly shaped his musical work Reveals how Mozart structured his music on Masonic ritual and ceremony to provide a musical lexicon of Masonic symbols Shows that Freemasonry plays the same role in Mozarts work as Lutheran Christianity plays in that of Bach Thanks to recently discovered documents, we now have a fuller picture of the esoteric influences on the life and work of Wolfgang Amadeus Mozart. Musicologist Jacques Henry shows that the Masonic influence on Mozart goes beyond those pieces, such as The Magic Flute, that fulfilled a ritual purpose for the composer. His works actually provide a complete musical lexicon of Masonic symbols inspired by the principles of the craft and the spirit of the Masonic quest. Mozart constructed his Masonic compositions by creating auditory correspondences to the symbols present in the rituals, choosing keys and tempos that transpose their content into harmony.