One of the most important outlets for the eighteenth century composers was the writing of music for entertainment at. social occasions. Many different terms were applied to such compositions, including such designations as: divertimento, cassation, serenade, notturno, partita, tafelmusik, and harmoniemusik. None of these terms specified a particular formal design, but indicated music written in a light and popular vein, intended for easy listening, Almost every composer of the classical period wrote music of this type, both for ensembles of winds and strings and pure wind ensembles. Mozart's works for wind ensembles were composed between 1773 and 1783. These pieces utilize a wide combination of instruments and a wide variety of forms. In summary, these works of Mozart present a clear development in the handling of wind instruments, in the invention of themes suited to the instruments, and in the adaption of formal considerations to these instruments. The fumbling seen in the works of Milano gives way to a sure mastery of wind writing in the Salzburg sextets. The composing techniques exploited in the Salzburg works were employed quickly in writing works of the Vienna period. The serenade in E^b, an arrangement of Mozart's opera. Die Entfiu¨hrung, and the serenade in c minor, all adapted to Viennese tastes. The culmination of woodwind ensembles in the classical period seems to be found in serenade, K. 361 in B^b called "Gran Partita." Mozart brought woodwind ensembles to art music status by elevating the appeal for music originally intended for entertaiment. As a result, the works of woodwind ensimbles in the classical period were placed in their own musical genre.