Thursday 2 October 1980 Concert 122 In person Wednesday 22 October 1980 Concert 123 [Studio voor Experimentele Muziek] In person Thursday 23 October 1980 Concert 124 [Boesmans, Blondeel] In person Thursday 13 November 1980 Concert 125 [Ensemble d’ondes de Montréal] In person Thursday 11 December 1980 Concert 126 In person Thursday 29 January 1981 Concert 127 [Ligeti, Burke] In person Thursday 19 February 1981 Concert 128 [Berio, Tremblay, Xenakis] In person Thursday 5 March 1981 Concert 129 [Leguay] In person Thursday 9 April 1981 Concert 130 In person