Heinz Holliger (oboe) Herman Krebbers (violin) Karl Schouten (viola) Jean Decroos (cello)
The Lindsays (Peter Cropper, Ronald Birks, Robin Ireland, Bernard Gergor-Smith)
The Lindsays Peter Cropper & Ronald Birks (violin) Robin Ireland (viola) Bernard Gregor-Smith (cello)
Hagen Quartett