Thursday 21 August 1975 Concert 69 Thursday 2 October 1975 Concert 70 Thursday 6 November 1975 Concert 72 [Varèse] Thursday 11 December 1975 Concert 73 [Berio, Kagel] Thursday 22 January 1976 Concert 74 Thursday 18 March 1976 Concert 75 Thursday 8 April 1976 Concert 76
