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Alban Berg Quartett

The Alban Berg Quartett (ABQ) was a string quartet founded in Vienna, named after the composer Alban Berg. Active from 1970 to 2008, the group included first violinist Günter Pichler and cellist Valentin Erben, while the second violinist was briefly Klaus Maetzl (1971–1978) and Gerhard Schulz from t