Symphony, K. 45a (Mozart) implies that K. 45a was composed by Wolfgang during their stay in The Hague, possibly for the inauguration of William V, Prince of Orange on 11 March 1766. The Mozarts then took the symphony along with them on their journeys; Wolfgang revised the symphony along the way by making a few changes, especially in the inner voices. Symphony, K. 45a (Mozart) The Symphony in G major "Old Lambach", K. Anh. 221/45a, was probably written by Wolfgang Amadeus Mozart during 1766 in The Hague and revised in 1767. Both versions – the original and the revision – have survived. The symphony
Wolfgang Amadeus Mozart visit was successful, though the Munich journey resulted in a popular success with the premiere of Mozart's opera "La finta giardiniera". In August 1777, Mozart resigned his position at Salzburg and on 23 September ventured out once more in search of employment, with visits to Augsburg, Mannheim, Paris, and Munich. Mozart became acquainted with members of the famous orchestra in Mannheim, the best in Europe at the time. He also fell in love with Aloysia Weber, one of four daughters of a musical family. There were prospects of employment in Mannheim, but they came to nothing, and Mozart left for