Hagen Quartett
Harold Wright (clarinet) Boston Symphony Chamber Players [Malcolm Lowe & Laura Park (violins) Burton Fine (viola) Jules Eskin (cello)]
Arthur Grumiaux, Arpad Gerecz Violin Georges Janzer, Max Lesueur Viola Eva Czako Violoncello
Bruno Hoffmann Glass Harmonica Aurele Nicolet Flute Heinz holliger Oboe Karl Schouten Viola Jean Decroos Violoncello