In 1772, a 16 year old Wolfgang Amadeus Mozart (1756-1791) wrote 7 of his 41 symphonies. Having just returned from a trip to Italy with his father where he had been commissioned to write a serenata for the wedding of Archduke Ferdinand and Beatrice D�Este, his return home resulted in a year of composing.  In addition to the symphonies, Mozart wrote three divertimenti, a largely minor work for most other composers, but which Mozart elevated to the complexity found in the fairly new symphonic form. The three divertimenti from 1772, K136 – K138, are often called his �Salzburg Symphonies.� They may be performed as either a string orchestra (4-4-3-3-3 in set) or as a string quartet.