The focus of their activities in Europe became annual concert cycles at the Wiener Konzerthaus , at London 's Queen Elizabeth Hall , the Frankfurt Alte Oper , the Théâtre des Champs Elysées in Paris , the Philharmonic Hall in Cologne , the Zurich Opera , as well as regular concerts at most major halls and venues around the world ( among them La Scala , Concertgebouw , Berliner Philharmonie , Carnegie Hall , Teatro Colón , Suntory Hall , etc .