 For example, the three notes, which originate from the French genre of "le merveilleux", already appear in the musical theater of the early 18th century.The three chords in the overture can be found in many other 18th-century stage works, such as Traetta's "Armida" and Gazzaniga's "La Circe", operas that have no connection with Freemasonry.The following is a list of surviving works that Mozart composed for performance at gatherings of Masons.