The Symphony No. 8 in D major,, by Wolfgang Amadeus Mozart is dated December 13, 1768. It was written in Vienna, at a time when the family were already due to have returned home to Salzburg. In a letter to his friend in Salzburg, Lorenz Hagenauer, Leopold Mozart says of the delay that "we could not bring our affairs to a conclusion earlier, even though I endeavored strenuously to do so." The autograph of the Symphony No. 8 is today preserved in the Staatsbibliothek Preusischer Kulturbesitz in Berlin.
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