Austrian cellist Clemens Hagen took up his instrument at age six, and by eight was enrolled at the Mozarteum University in Salzburg; he later attended the Basel Music Academy in Switzerland, where his teachers included Wilfried Tachezi and Heinrich Schiff. Hagen has performed with the Vienna Philharmonic Orchestra, the Vienna Symphony Orchestra, the Berlin Philharmonic Orchestra, the Royal Concertgebouw Orchestra, the Chamber Orchestra of Europe, the Camerata Salzburg, the Deutsche Kammerphilharmonie Bremen, the Lucerne Festival Orchestra, the NHK Symphony Orchestra, the Toron...