the Augsburg guild (as contrasted to speculative freemasons). But close affinities among operative and speculative existed in this period. Notes References Braunbehrens, Volkmar (1990). Mozart in Vienna. New York: Grove and Weidenfeld. Deutsch, Otto Erich (1965). Mozart: A Documentary Biography. Stanford: Stanford University Press. Solomon, Maynard (1995). Mozart: A Life. HarperCollins. Thomson, Katherine (1977). The Masonic Thread in Mozart. London: Lawrence and Wishart. . Till, Nicholas (1992). Mozart and the Enlightenment, London: Faber External links Mozart’s masonic music, Grand Lodge of British Columbia and Yukon official website. Freemasonry Freemasonry