Claudio Abbado conducts the Berlin Philharmonic in a performance of Mozart's "Haffner" Symphony No. 35, K. 385, recorded during the very first Europakonzert in the Smetana Hall in Prague, 1991. Mozart originally composed the symphony as a serenade for the family of Sigmund Haffner, a childhood friend from Salzburg in 1782. The composer made some revisions in the following year, adding multiple instruments and conducted the premiere of the four-movement piece on March 23, 1783, in Vienna. The "Haffner" Symphony, as it is known now, is a transitional work in Mozart's career. The work was meant to be party music for Salzburg and was transformed into a symphony for Vienna.