Georg Muffat is credited with the unification of the musical styles of Italy, France and Germany during the 17th century. In Paris the great Lully was among his distinguished mentors. In Vienna Emperor Leopold I became his patron and in Italy he was greatly influenced by Corelli. Muffat's orchestral suites, Florilegia, were considered among the finest works written in Germany in the second half of the 17th century. His Apparatus musico-organisticus was presented to its dedicatee Emperor Leopold in 1690. It contained an organ score of considerable importance, the main section comprising twelve large-scale Toccatas arranged in the order of church tones, each work constructed in several sections to display the brilliance and extremes of organ textures.