BiographyConcerts 6 results1 Concert 58 Thursday, March 21, 1974 Concert 23 Thursday, February 12, 1970 Concert 22 Thursday, February 5, 1970 Concert 10 [Quatuor Gabora] Thursday, February 8, 1968 Concert 6 / 7 Thursday, August 24 – Friday, 25, 1967 Concert 3 Wednesday, April 5, 1967 1