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 of wanting his musical servant to be at hand (Mozart indeed was required to dine in Colloredo's establishment with the valets and cooks.) But Mozart was planning a bigger career even as he continued in the archbishop's service; for example, to his father he wrote: My main goal right now is to meet the emperor in some agreeable fashion, I am absolutely determined he . I would be so happy if I could whip through my opera for him and then play a fugue or two, for that's what he likes. Mozart did indeed soon meet the Emperor, who eventually