Thursday 26 September 1974 Concert 61 In person Saturday 28 September 1974 Concert 62 In person Thursday 24 October 1974 Concert 63 [Kagel] In person Saturday 23 November 1974 Concert 64 In person Thursday 23 January 1975 Concert 65 [Robert Leroux] In person Thursday 20 February 1975 Concert 66 [Xavier Darasse] In person Thursday 27 March 1975 Concert 67 In person Thursday 15 May 1975 Concert 68 In person