The Enlightenment, Freemasonry, Josephinian reforms, and Mozart converged upon Vienna in the 1780s to produce perhaps the most intensely creative epoch in the history of the human race. Till takes you there and serves it all up as has no other author I have read. The wealth of information here is too great to be absorbed in one reading, but just as one continues to enjoy Mozart's music with successive exposures, so may one expect re-reading of Till to be informative and pleasurable.