For over 20 years the Berliner Philharmoniker have celebrated their foundation anniversary on May 1 with the annual Europa Konzert. The 2006 event in at the Theatre of the Estates in Prague featured an all-Mozart program with Daniel Barenboim in his familiar dual role as soloist and conductor. Two masterpiece Mozart symphonies, the "Haffner" and the "Linz" are spotlighted.