Bruno Hoffmann&Aurèle Nicolet&Heinz Holliger&Karl Schouten&Jean Decroos
Bruno Hoffmann&Aurèle Nicolet&Heinz Holliger&Karl Schouten&Jean Decroos
Alfred Brendel&Heinz Holliger&Eduard Brunner&Hermann Baumann&Klaus Thunemann
Alfred Brendel&Heinz Holliger&Eduard Brunner&Hermann Baumann&Klaus Thunemann
Alfred Brendel&Heinz Holliger&Eduard Brunner&Hermann Baumann&Klaus Thunemann