In 1936 Barylli gave his first public performance as a soloist in Munich, and made his first gramophone recordings in Berlin.
Closely associated with the Vienna Musikverein, their work was principally with classic repertoire such as Beethoven, Mozart, Schubert, Schumann and Brahms.
They performed at the Salzburg Festival, from which at least two live concerts (from 1956, Mozart Quintet with Antoine de Bavier,[5] and 1958, of Beethoven, Schubert and Hindemith[6]), have also survived as recordings.
Their principal collaborations in chamber music were with Antoine de Bavier, Edith Farnadi, Jörg Demus, Paul Badura-Skoda and the violist Wilhelm Hübner.
Emanuel Brabec, the group's cellist in 1958, taught at the Vienna Academy and was teacher of Nikolaus Harnoncourt.